{"answers":{"affected":"3 open source packages ship an affected version, including urllib3. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-44431 in the wild and no public exploit code.","fix":"Upgrade urllib3 to 2.7.0 or later.","what":"CVE-2026-44431 is a high-severity vulnerability in urllib3, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-44431 and fix it if it is affected.\n\nWhat it is: CVE-2026-44431 is a high-severity vulnerability in urllib3, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-44431 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- urllib3 (PyPI): affected from 1.23; fixed in 2.7.0\n- urllib3 (PyPI): affected from 1.23; fixed in 2.7.0\n- urllib3 (PyPI): affected from 1.23; fixed in 2.7.0\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-2026-44431/ (Markdown: https://insights.sbomify.com/CVE-2026-44431/index.md)","id":"CVE-2026-44431","markdown":"https://insights.sbomify.com/CVE-2026-44431/index.md","name":"CVE-2026-44431","record":{"aliases":["ALSA-2026:36732","ALSA-2026:47126","ALSA-2026:49927","AZL-86862","BELL-CVE-2026-44431","CLEANSTART-2026-KM03146","CLEANSTART-2026-RV30467","CLSA-2026-1782176234","CLSA-2026-1782954023","CLSA-2026-1789549824","CLSA-2026-1791187923","DEBIAN-CVE-2026-44431","ECHO-4544-3b20-7e41","GHSA-qccp-gfcp-xxvc","MINI-35pg-r928-4499","MINI-3xgc-53cx-ff5f","MINI-43r4-8hqh-5h4m","MINI-76w6-v44w-v7h2","MINI-84hp-38gr-rfh3","MINI-8q84-p6cw-jf4m","MINI-8qx6-49gc-px7w","MINI-9239-94jq-89wm","MINI-92cw-2ghh-pmc6","MINI-94wh-7573-89j9","MINI-cpjh-v7g2-m78j","MINI-cq9q-52qr-4gx6","MINI-f8xm-8p79-g739","MINI-gq25-6xcx-cgq4","MINI-jh59-7mfp-3w3r","MINI-jrcj-3f3v-jhhf","MINI-mmr8-mqh6-2gjw","MINI-p78w-wrc3-6px4","MINI-q3qg-9x57-28hh","MINI-qpwf-cf8r-jrff","MINI-rg8j-qh5v-g255","MINI-rm77-hpxh-jw9f","MINI-v36v-6m24-79r2","MINI-v6jm-jvrh-rqp4","MINI-wfxv-rvvg-7v37","MINI-x462-8h5j-whjm","MINI-xhwv-w54c-3gmc","MINI-xrx5-m4gh-h4vh","MINI-xv59-x34r-45gm","OESA-2026-2298","OESA-2026-2299","OESA-2026-2300","OESA-2026-2390","OESA-2026-2391","OESA-2026-2543","PYSEC-2026-141","RHSA-2026:30169","RHSA-2026:36732","RHSA-2026:47091","RHSA-2026:47092","RHSA-2026:47126","RHSA-2026:47129","RHSA-2026:49927","RHSA-2026:51045","RHSA-2026:51152","RHSA-2026:51157","RLSA-2026:36732","RLSA-2026:47126","RLSA-2026:49927","ROOT-APP-PYPI-CVE-2026-44431","SUSE-SU-2026:2065-1","SUSE-SU-2026:2067-1","SUSE-SU-2026:2119-1","SUSE-SU-2026:21728-1","SUSE-SU-2026:21741-1","SUSE-SU-2026:21955-1","SUSE-SU-2026:22003-1","SUSE-SU-2026:22011-1","SUSE-SU-2026:2486-1","UBUNTU-CVE-2026-44431","USN-8811-1","openSUSE-SU-2026:10838-1","openSUSE-SU-2026:20861-1","openSUSE-SU-2026:20871-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"Python HTTP client library","requires_auth":"none","summary":"Attackers can steal sensitive headers during cross-origin redirects in urllib3's low-level API when using ProxyManager with assert_same_host disabled.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"urllib3","vendor":"python"}],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"urllib3 is an HTTP client library for Python. From 1.23 to before 2.7.0, cross-origin redirects followed from the low-level API via ProxyManager.connection_from_url().urlopen(..., assert_same_host=False) still forward these sensitive headers. This vulnerability is fixed in 2.7.0.","ecosystems":["AlmaLinux:8","PyPI","Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:8::baseos","Red Hat:enterprise_linux:8::highavailability","Red Hat:enterprise_linux:8::resilientstorage","Red Hat:hummingbird:1","Red Hat:rhel_aus:8.4::appstream","Red Hat:rhel_aus:8.4::highavailability","Red Hat:rhel_aus:8.6::appstream","Red Hat:rhel_e4s:8.8::appstream","Red Hat:rhel_e4s:8.8::highavailability","Red Hat:rhel_eus_long_life:8.4::appstream","Red Hat:rhel_eus_long_life:8.4::highavailability","Red Hat:rhel_eus_long_life:8.6::appstream","Red Hat:rhel_eus_long_life:8.6::highavailability","Red Hat:rhel_tus:8.8::appstream","Red Hat:rhel_tus:8.8::highavailability","Rocky Linux:8","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 Module for Public Cloud 15 SP4","SUSE:Linux Enterprise Module for Python 3 15 SP7","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 16.0","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","SUSE:Linux Enterprise Server for SAP applications 16.0","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":"urllib3: Sensitive headers forwarded across origins in proxied low-level redirects","id":"CVE-2026-44431","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":546,"n_references":1,"next":{"headline":"urllib3: Decompression-bomb safeguards bypassed in parts of the streaming API","id":"CVE-2026-44432"},"packages":[{"ecosystem":"PyPI","fixed":["2.7.0"],"introduced":["1.23"],"last_affected":[],"package":"urllib3","purl":null,"source":"GHSA-qccp-gfcp-xxvc"},{"ecosystem":"PyPI","fixed":["2.7.0"],"introduced":["1.23"],"last_affected":[],"package":"urllib3","purl":"pkg:pypi/urllib3","source":"GHSA-qccp-gfcp-xxvc"},{"ecosystem":"PyPI","fixed":["2.7.0"],"introduced":["1.23"],"last_affected":[],"package":"urllib3","purl":"pkg:pypi/urllib3","source":"PYSEC-2026-141"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-aliyun","purl":"pkg:rpm/almalinux/fence-agents-aliyun","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-all","purl":"pkg:rpm/almalinux/fence-agents-all","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-amt-ws","purl":"pkg:rpm/almalinux/fence-agents-amt-ws","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-apc","purl":"pkg:rpm/almalinux/fence-agents-apc","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-apc-snmp","purl":"pkg:rpm/almalinux/fence-agents-apc-snmp","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-aws","purl":"pkg:rpm/almalinux/fence-agents-aws","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-azure-arm","purl":"pkg:rpm/almalinux/fence-agents-azure-arm","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-bladecenter","purl":"pkg:rpm/almalinux/fence-agents-bladecenter","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-brocade","purl":"pkg:rpm/almalinux/fence-agents-brocade","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-cisco-mds","purl":"pkg:rpm/almalinux/fence-agents-cisco-mds","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-cisco-ucs","purl":"pkg:rpm/almalinux/fence-agents-cisco-ucs","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-common","purl":"pkg:rpm/almalinux/fence-agents-common","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-compute","purl":"pkg:rpm/almalinux/fence-agents-compute","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-drac5","purl":"pkg:rpm/almalinux/fence-agents-drac5","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-eaton-snmp","purl":"pkg:rpm/almalinux/fence-agents-eaton-snmp","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-emerson","purl":"pkg:rpm/almalinux/fence-agents-emerson","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-eps","purl":"pkg:rpm/almalinux/fence-agents-eps","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-gce","purl":"pkg:rpm/almalinux/fence-agents-gce","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-heuristics-ping","purl":"pkg:rpm/almalinux/fence-agents-heuristics-ping","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-hpblade","purl":"pkg:rpm/almalinux/fence-agents-hpblade","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-ibm-powervs","purl":"pkg:rpm/almalinux/fence-agents-ibm-powervs","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-ibm-vpc","purl":"pkg:rpm/almalinux/fence-agents-ibm-vpc","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-ibmblade","purl":"pkg:rpm/almalinux/fence-agents-ibmblade","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-ifmib","purl":"pkg:rpm/almalinux/fence-agents-ifmib","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-ilo-moonshot","purl":"pkg:rpm/almalinux/fence-agents-ilo-moonshot","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-ilo-mp","purl":"pkg:rpm/almalinux/fence-agents-ilo-mp","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-ilo-ssh","purl":"pkg:rpm/almalinux/fence-agents-ilo-ssh","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-ilo2","purl":"pkg:rpm/almalinux/fence-agents-ilo2","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-intelmodular","purl":"pkg:rpm/almalinux/fence-agents-intelmodular","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-ipdu","purl":"pkg:rpm/almalinux/fence-agents-ipdu","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-ipmilan","purl":"pkg:rpm/almalinux/fence-agents-ipmilan","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-kdump","purl":"pkg:rpm/almalinux/fence-agents-kdump","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-kubevirt","purl":"pkg:rpm/almalinux/fence-agents-kubevirt","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-lpar","purl":"pkg:rpm/almalinux/fence-agents-lpar","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-mpath","purl":"pkg:rpm/almalinux/fence-agents-mpath","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-nutanix-ahv","purl":"pkg:rpm/almalinux/fence-agents-nutanix-ahv","source":"ALSA-2026:49927"},{"ecosystem":"AlmaLinux:8","fixed":["4.2.1-129.el8_10.28"],"introduced":["0"],"last_affected":[],"package":"fence-agents-openstack","purl":"pkg:rpm/almalinux/fence-agents-openstack","source":"ALSA-2026:49927"}],"prev":{"headline":"MCP Registry has an unauthenticated SSRF: HTTP namespace verification dials 6to4 / NAT64 / site-local IPv6 addresses, bypassing private-address allowlist","id":"CVE-2026-44430"},"products":["urllib3"],"published":"2026-05-13","related":[{"cvss_score":8.9,"headline":"urllib3: HTTPResponse.stream()/read_chunked() buffers an unbounded chunk-size line into memory","id":"CVE-2026-97689","kev_date_added":null,"published":"2026-09-29"},{"cvss_score":8.9,"headline":"urllib3: Decompression-bomb safeguards bypassed in parts of the streaming API","id":"CVE-2026-44432","kev_date_added":null,"published":"2026-05-13"},{"cvss_score":8.9,"headline":"urllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API)","id":"CVE-2026-21441","kev_date_added":null,"published":"2026-01-07"},{"cvss_score":8.9,"headline":"urllib3 allows an unbounded number of links in the decompression chain","id":"CVE-2025-66418","kev_date_added":null,"published":"2025-12-05"},{"cvss_score":8.9,"headline":"urllib3 Streaming API improperly handles highly compressed data","id":"CVE-2025-66471","kev_date_added":null,"published":"2025-12-05"},{"cvss_score":7.6,"headline":"urllib3: HTTPS proxy TLS configuration may be ignored or overridden","id":"CVE-2026-97687","kev_date_added":null,"published":"2026-09-29"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"2026-06-26","vendors":["urllib3"]},"summary":"Attackers can steal sensitive headers during cross-origin redirects in urllib3's low-level API when using ProxyManager with assert_same_host disabled.","url":"https://insights.sbomify.com/CVE-2026-44431/"}