{"answers":{"affected":"3 open source packages ship an affected version, including libpython, python and python-min.","exploited":"There is no known exploitation of CVE-2026-15310 in the wild and no public exploit code.","fix":"Upgrade libpython to a fixed version for your release line: 3.10.22, 3.11.17, 3.12.15 or 3.13.16.","what":"CVE-2026-15310 is a low-severity denial of service vulnerability in CPython, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-15310 and fix it if it is affected.\n\nWhat it is: CVE-2026-15310 is a low-severity denial of service vulnerability in CPython, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-15310 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- libpython (Bitnami): affected all versions; fixed in 3.10.22, 3.11.17, 3.12.15, 3.13.16, 3.14.8\n- python (Bitnami): affected all versions; fixed in 3.10.22, 3.11.17, 3.12.15, 3.13.16, 3.14.8\n- python-min (Bitnami): affected all versions; fixed in 3.10.22, 3.11.17, 3.12.15, 3.13.16, 3.14.8\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-2026-15310/ (Markdown: https://insights.sbomify.com/CVE-2026-15310/index.md)","id":"CVE-2026-15310","markdown":"https://insights.sbomify.com/CVE-2026-15310/index.md","name":"CVE-2026-15310","record":{"aliases":["ALPINE-CVE-2026-15310","AZL-98208","AZL-98217","BELL-CVE-2026-15310","BIT-libpython-2026-15310","BIT-python-2026-15310","BIT-python-min-2026-15310","CLSA-2026-1791377791","DEBIAN-CVE-2026-15310","ECHO-961e-fb97-7609","GHSA-xj79-6hh5-9w6q","MINI-8mcg-f95p-q229","MINI-9q44-6wpv-mmq3","MINI-hf6c-3mx3-v98f","MINI-p4pv-4mqx-4gpp","MINI-vh5c-3f35-qmv3","OESA-2026-3755","OESA-2026-3756","OESA-2026-3757","OESA-2026-3920","PSF-2026-39","UBUNTU-CVE-2026-15310","openSUSE-SU-2026:11950-1"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Python standard library","requires_auth":"none","summary":"Attackers can cause memory exhaustion and denial of service by crafting zip files with specific compression algorithms that bypass memory limits in Python's zipfile module.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"PSF","cpe":[],"cvss":{"score":2.1,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"When decompressing crafted zip files using the bzip/LZMA/Zstandard \n\ncompressions, Python could use an attacker-controlled size to \n\npre-allocate memory, possibly resulting in memory exhaustion.","ecosystems":["Bitnami","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":"zipfile: bzip2/LZMA/Zstandard members decompress without a max_length bound, defeating chunked-read memory limits","id":"CVE-2026-15310","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":4,"n_references":13,"next":{"headline":"NousResearch hermes-agent Matrix Adapter matrix.py MatrixAdapter._markdown_to_html cross site scripting","id":"CVE-2026-15311"},"packages":[{"ecosystem":"Bitnami","fixed":["3.10.22","3.11.17","3.12.15","3.13.16","3.14.8"],"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-2026-15310"},{"ecosystem":"Bitnami","fixed":["3.10.22","3.11.17","3.12.15","3.13.16","3.14.8"],"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-2026-15310"},{"ecosystem":"Bitnami","fixed":["3.10.22","3.11.17","3.12.15","3.13.16","3.14.8"],"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-2026-15310"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["3.13.15-2.1"],"introduced":["0"],"last_affected":[],"package":"python313","purl":"pkg:rpm/opensuse/python313\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:11950-1"}],"prev":{"headline":"Incremental HTMLParser feed() allows CPU-exhaustion DoS via repeated unterminated markup declarations","id":"CVE-2026-15308"},"products":["CPython"],"published":"2026-08-25","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":"openSUSE"},{"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":"2026-10-02","vendors":["Python Software Foundation"]},"summary":"Attackers can cause memory exhaustion and denial of service by crafting zip files with specific compression algorithms that bypass memory limits in Python's zipfile module.","url":"https://insights.sbomify.com/CVE-2026-15310/"}