{"answers":{"affected":"3 open source packages ship an affected version, including libpython, python and python-min.","exploited":"There is no known exploitation of CVE-2026-1299 in the wild and no public exploit code.","fix":"Upgrade libpython to a fixed version for your release line: 3.10.20, 3.11.15, 3.12.13 or 3.13.12.","what":"CVE-2026-1299 is a medium-severity vulnerability in CPython, published on 23 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-1299 and fix it if it is affected.\n\nWhat it is: CVE-2026-1299 is a medium-severity vulnerability in CPython, published on 23 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-1299 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- libpython (Bitnami): affected all versions; fixed in 3.10.20, 3.11.15, 3.12.13, 3.13.12, 3.14.3\n- python (Bitnami): affected all versions; fixed in 3.10.20, 3.11.15, 3.12.13, 3.13.12, 3.14.3\n- python-min (Bitnami): affected all versions; fixed in 3.10.20, 3.11.15, 3.12.13, 3.13.12, 3.14.3\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-1299/ (Markdown: https://insights.sbomify.com/CVE-2026-1299/index.md)","id":"CVE-2026-1299","markdown":"https://insights.sbomify.com/CVE-2026-1299/index.md","name":"CVE-2026-1299","record":{"aliases":["AZL-75219","AZL-75234","AZL-84290","BELL-CVE-2026-1299","BIT-libpython-2026-1299","BIT-python-2026-1299","BIT-python-min-2026-1299","CLSA-2026-1777308690","CLSA-2026-1777366733","DEBIAN-CVE-2026-1299","ECHO-addc-a9aa-706b","GHSA-jh94-8q48-f3m3","MINI-336g-rwjj-rwvq","MINI-93jg-jrgx-3x8h","MINI-h64f-6c6m-vr4w","MINI-x3gh-526c-w448","MINI-xq7g-j9m9-24w7","PSF-2026-8","SUSE-SU-2026:0873-1","SUSE-SU-2026:0884-1","SUSE-SU-2026:0891-1","SUSE-SU-2026:0897-1","SUSE-SU-2026:1090-1","UBUNTU-CVE-2026-1299","openSUSE-SU-2026:10398-1"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["data_modify"],"network_reachable":"yes","non_default_config":true,"product_category":"Python email library","requires_auth":"low_privilege","summary":"Attackers can inject headers into emails if developers use LiteralHeader with BytesGenerator, requiring specific coding patterns to exploit.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"PSF","cpe":[],"cvss":{"score":6,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-93","name":"Improper Neutralization of CRLF Sequences"}],"description":"The \nemail module, specifically the \"BytesGenerator\" class, didn’t properly quote newlines for email headers when \nserializing an email message allowing for header injection when an email\n is serialized. This is only applicable if using \"LiteralHeader\" writing headers that don't respect email folding rules, the new behavior will reject the incorrectly folded headers in \"BytesGenerator\".","ecosystems":["Bitnami","SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS","SUSE:Linux Enterprise Micro 5.2","SUSE:Linux Enterprise Micro 5.3","SUSE:Linux Enterprise Micro 5.4","SUSE:Linux Enterprise Micro 5.5","SUSE:Linux Enterprise Module for Basesystem 15 SP7","SUSE:Linux Enterprise Module for Development Tools 15 SP7","SUSE:Linux Enterprise Module for Package Hub 15 SP7","SUSE:Linux Enterprise Server 12 SP5-LTSS","SUSE:Linux Enterprise Server 15 SP4-LTSS","SUSE:Linux Enterprise Server 15 SP5-LTSS","SUSE:Linux Enterprise Server 15 SP6-LTSS","SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","SUSE:Linux Enterprise Server for SAP Applications 15 SP4","SUSE:Linux Enterprise Server for SAP Applications 15 SP5","SUSE:Linux Enterprise Server for SAP Applications 15 SP6","openSUSE:Leap 15.6","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"email BytesGenerator header injection due to unquoted newlines","id":"CVE-2026-1299","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":"other","year":"2026"},"n_packages":57,"n_references":10,"next":{"headline":"Responsive Header Plugin \u003c= 1.0 - Authenticated (Administrator+) Stored Cross-Site Scripting via Settings Parameters","id":"CVE-2026-1300"},"packages":[{"ecosystem":"Bitnami","fixed":["3.10.20","3.11.15","3.12.13","3.13.12","3.14.3"],"introduced":["0","3.11.0","3.12.0","3.13.0","3.14.0"],"last_affected":[],"package":"libpython","purl":"pkg:bitnami/libpython","source":"BIT-libpython-2026-1299"},{"ecosystem":"Bitnami","fixed":["3.10.20","3.11.15","3.12.13","3.13.12","3.14.3"],"introduced":["0","3.11.0","3.12.0","3.13.0","3.14.0"],"last_affected":[],"package":"python","purl":"pkg:bitnami/python","source":"BIT-python-2026-1299"},{"ecosystem":"Bitnami","fixed":["3.10.20","3.11.15","3.12.13","3.13.12","3.14.3"],"introduced":["0","3.11.0","3.12.0","3.13.0","3.14.0"],"last_affected":[],"package":"python-min","purl":"pkg:bitnami/python-min","source":"BIT-python-min-2026-1299"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3","purl":"pkg:rpm/suse/python3\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3-core","purl":"pkg:rpm/suse/python3-core\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3","purl":"pkg:rpm/suse/python3\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3-core","purl":"pkg:rpm/suse/python3-core\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3","purl":"pkg:rpm/suse/python3\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOS","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3-core","purl":"pkg:rpm/suse/python3-core\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOS","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3","purl":"pkg:rpm/suse/python3\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSS","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3-core","purl":"pkg:rpm/suse/python3-core\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSS","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.2","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3","purl":"pkg:rpm/suse/python3\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.2","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.2","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3-core","purl":"pkg:rpm/suse/python3-core\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.2","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.3","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3","purl":"pkg:rpm/suse/python3\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.3","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.3","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3-core","purl":"pkg:rpm/suse/python3-core\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.3","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.4","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3","purl":"pkg:rpm/suse/python3\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.4","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.4","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3-core","purl":"pkg:rpm/suse/python3-core\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.4","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.5","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3","purl":"pkg:rpm/suse/python3\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.5","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.5","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3-core","purl":"pkg:rpm/suse/python3-core\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.5","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP7","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3","purl":"pkg:rpm/suse/python3\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP7","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3-core","purl":"pkg:rpm/suse/python3-core\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Development Tools 15 SP7","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3-core","purl":"pkg:rpm/suse/python3-core\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Package Hub 15 SP7","fixed":["2.7.18-150000.108.1"],"introduced":["0"],"last_affected":[],"package":"python","purl":"pkg:rpm/suse/python\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7","source":"SUSE-SU-2026:0873-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Package Hub 15 SP7","fixed":["2.7.18-150000.108.1"],"introduced":["0"],"last_affected":[],"package":"python-base","purl":"pkg:rpm/suse/python-base\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7","source":"SUSE-SU-2026:0873-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5-LTSS","fixed":["2.7.18-33.69.1"],"introduced":["0"],"last_affected":[],"package":"python","purl":"pkg:rpm/suse/python\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS","source":"SUSE-SU-2026:0891-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5-LTSS","fixed":["2.7.18-33.69.1"],"introduced":["0"],"last_affected":[],"package":"python-base","purl":"pkg:rpm/suse/python-base\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS","source":"SUSE-SU-2026:0891-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5-LTSS","fixed":["2.7.18-33.69.1"],"introduced":["0"],"last_affected":[],"package":"python-doc","purl":"pkg:rpm/suse/python-doc\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS","source":"SUSE-SU-2026:0891-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5-LTSS","fixed":["3.4.10-25.175.1"],"introduced":["0"],"last_affected":[],"package":"python3","purl":"pkg:rpm/suse/python3\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS","source":"SUSE-SU-2026:0897-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5-LTSS","fixed":["3.4.10-25.175.1"],"introduced":["0"],"last_affected":[],"package":"python3-base","purl":"pkg:rpm/suse/python3-base\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS","source":"SUSE-SU-2026:0897-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5-LTSS","fixed":["3.6.15-103.1"],"introduced":["0"],"last_affected":[],"package":"python36","purl":"pkg:rpm/suse/python36\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS","source":"SUSE-SU-2026:0884-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5-LTSS","fixed":["3.6.15-103.1"],"introduced":["0"],"last_affected":[],"package":"python36-core","purl":"pkg:rpm/suse/python36-core\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS","source":"SUSE-SU-2026:0884-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP4-LTSS","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3","purl":"pkg:rpm/suse/python3\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP4-LTSS","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3-core","purl":"pkg:rpm/suse/python3-core\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP5-LTSS","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3","purl":"pkg:rpm/suse/python3\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSS","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP5-LTSS","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3-core","purl":"pkg:rpm/suse/python3-core\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSS","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP6-LTSS","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3","purl":"pkg:rpm/suse/python3\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSS","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP6-LTSS","fixed":["3.6.15-150300.10.109.1"],"introduced":["0"],"last_affected":[],"package":"python3-core","purl":"pkg:rpm/suse/python3-core\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSS","source":"SUSE-SU-2026:1090-1"},{"ecosystem":"SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","fixed":["2.7.18-33.69.1"],"introduced":["0"],"last_affected":[],"package":"python","purl":"pkg:rpm/suse/python\u0026distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5","source":"SUSE-SU-2026:0891-1"},{"ecosystem":"SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","fixed":["2.7.18-33.69.1"],"introduced":["0"],"last_affected":[],"package":"python-base","purl":"pkg:rpm/suse/python-base\u0026distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5","source":"SUSE-SU-2026:0891-1"},{"ecosystem":"SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","fixed":["2.7.18-33.69.1"],"introduced":["0"],"last_affected":[],"package":"python-doc","purl":"pkg:rpm/suse/python-doc\u0026distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5","source":"SUSE-SU-2026:0891-1"}],"prev":{"headline":"Easy Replace Image \u003c= 3.5.2 - Missing Authorization to Authenticated (Contributor+) Arbitrary Attachment Replacement","id":"CVE-2026-1298"},"products":["CPython"],"published":"2026-01-23","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-03","vendors":["Python Software Foundation"]},"summary":"Attackers can inject headers into emails if developers use LiteralHeader with BytesGenerator, requiring specific coding patterns to exploit.","url":"https://insights.sbomify.com/CVE-2026-1299/"}