{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-13089 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-13089 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-13089 is a high-severity authentication bypass vulnerability in RITOU OIDC::Lite, published on 22 Jul 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-2026-13089 and fix it if it is affected.\n\nWhat it is: CVE-2026-13089 is a high-severity authentication bypass vulnerability in RITOU OIDC::Lite, published on 22 Jul 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-2026-13089 in the wild and no public exploit code.\n\nAffected product: RITOU OIDC::Lite. 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-2026-13089/ (Markdown: https://insights.sbomify.com/CVE-2026-13089/index.md)","id":"CVE-2026-13089","markdown":"https://insights.sbomify.com/CVE-2026-13089/index.md","name":"CVE-2026-13089","record":{"aliases":["GHSA-fr32-wcm4-p6hf"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Perl OIDC library","requires_auth":"none","summary":"Attackers can bypass ID Token signature verification in OIDC::Lite by manipulating the algorithm header, allowing authentication as any user.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CPANSec","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"OIDC::Lite versions through 0.12.1 for Perl allow ID Token signature verification bypass via a token-controlled algorithm allowlist in verify.\n\nWhen the caller does not pin an algorithm, OIDC::Lite::Model::IDToken::verify sets $self-\u003ealg($self-\u003eheader-\u003e{alg}) from the token's own header and then calls decode_jwt(token, key, 1, [$self-\u003ealg]), handing JSON::WebToken an accepted-algorithm allowlist taken from the untrusted token. A token with alg=none yields ['none'], so decode_jwt returns the claims with no signature check, and a token with alg=HS256 is verified with the RP's RSA public key as the HMAC secret (RS to HS confusion).\n\nThe ID Token is the OpenID Connect authentication assertion delivered to the Relying Party. Any caller that verifies an ID Token through the unpinned load(token)-\u003everify path, or load(token, key) with only the key pinned, accepts a forged token carrying attacker-chosen claims such as sub and is authenticated as any user. Passing an explicit algorithm so $self-\u003ealg is already set bypasses the header-derived allowlist and is not affected.\n\nNote that the latest version uploaded to CPAN is 0.10. Later versions are available in the git repository.","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":"Auth bypass in OIDC::Lite","id":"CVE-2026-13089","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"IBM i Access Client Solutions (ACS) is Affected By Multiple Vulnerabilities","id":"CVE-2026-13094"},"packages":[],"prev":{"headline":"This CVE was reserved in error and duplicates CVE-2026-89530.","id":"CVE-2026-13087"},"products":["OIDC::Lite"],"published":"2026-07-22","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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-27","vendors":["RITOU"]},"summary":"Attackers can bypass ID Token signature verification in OIDC::Lite by manipulating the algorithm header, allowing authentication as any user.","url":"https://insights.sbomify.com/CVE-2026-13089/"}