{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-115557 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-115557 is a critical vulnerability in CPython, published on 24 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-115557 and fix it if it is affected.\n\nWhat it is: CVE-2026-115557 is a critical vulnerability in CPython, published on 24 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-115557 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-2026-115557/ (Markdown: https://insights.sbomify.com/CVE-2026-115557/index.md)","id":"CVE-2026-115557","markdown":"https://insights.sbomify.com/CVE-2026-115557/index.md","name":"CVE-2026-115557","record":{"aliases":["ALPINE-CVE-2026-115557","AZL-111098","AZL-111101","BELL-CVE-2026-115557","DEBIAN-CVE-2026-115557","ECHO-b4e8-96ac-3414","GHSA-x547-2835-q547","PSF-2026-46","UBUNTU-CVE-2026-115557"],"analysis":null,"analysis_generated_by":null,"assigner":"PSF","cpe":[],"cvss":{"score":9.4,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-299","name":"Improper Check for Certificate Revocation"}],"description":"Python has added a denylist for known compromised certificates to the \"ssl\" module to ensure user safety even without certificate revocation configured. Known compromised certificates will automatically be rejected regardless of the SSLContext policy configuration.","ecosystems":[],"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":"Distrust compromised intermediate certificates in ssl module","id":"CVE-2026-115557","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":17,"next":{"headline":"Tokio: Race condition in `tokio::time::Interval`","id":"CVE-2026-115567"},"packages":[],"prev":{"headline":"Command Execution via Admin Console Input in Okta Access Gateway","id":"CVE-2026-115547"},"products":["CPython"],"published":"2026-10-24","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-27","vendors":["Python Software Foundation"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-115557/"}