{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-124249 in the wild and no public exploit code.","exposure":"","fix":"No fix has been published for CVE-2026-124249 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-124249 is a medium-severity vulnerability in CPython, published on 9 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-124249 and fix it if it is affected.\n\nWhat it is: CVE-2026-124249 is a medium-severity vulnerability in CPython, published on 9 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-124249 in the wild and no public exploit code.\n\nAffected product: CPython. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-124249/ (Markdown: https://insights.sbomify.com/CVE-2026-124249/index.md)","id":"CVE-2026-124249","markdown":"https://insights.sbomify.com/CVE-2026-124249/index.md","name":"CVE-2026-124249","record":{"aliases":["AZL-112910","AZL-112916","GHSA-chc2-vx2q-cwqf","UBUNTU-CVE-2026-124249"],"analysis":null,"analysis_generated_by":null,"assigner":"PSF","cpe":[],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-346","name":"Origin Validation Error"}],"description":"http.cookiejar.CookieJar deleted a stored cookie when a response carried an\nalready expired Set-Cookie header for it, using the Domain and Path\nattributes from the header without consulting the cookie policy. A server\ncould therefore delete cookies belonging to other domains from a shared\ncookie jar, such as the one used by urllib's HTTPCookieProcessor. The fix\nconsults the cookie policy before an expired cookie may delete an existing\none, as required by RFC 6265 section 5.3.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"`http.cookiejar` applies expired `Set-Cookie` to cookie store before policy validation","id":"CVE-2026-124249","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"WordPress GeoDirectory plugin \u003c= 2.8.202 - Cross Site Scripting (XSS) vulnerability","id":"CVE-2026-124250"},"nickname":null,"packages":[],"prev":{"headline":"Microsoft Office Word Information Disclosure Vulnerability","id":"CVE-2026-124233"},"products":["CPython"],"published":"2026-11-09","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-11-12","vendors":["Python Software Foundation"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-124249/"}