{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-53776 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-53776 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-53776 is a critical authentication bypass vulnerability in PerryTS perry, published on 16 Jun 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-2026-53776 and fix it if it is affected.\n\nWhat it is: CVE-2026-53776 is a critical authentication bypass vulnerability in PerryTS perry, published on 16 Jun 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-2026-53776 in the wild and no public exploit code.\n\nAffected product: PerryTS perry. 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-2026-53776/ (Markdown: https://insights.sbomify.com/CVE-2026-53776/index.md)","id":"CVE-2026-53776","markdown":"https://insights.sbomify.com/CVE-2026-53776/index.md","name":"CVE-2026-53776","record":{"aliases":["GHSA-5324-c68v-8w62"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Perry TypeScript library","requires_auth":"none","summary":"Attackers can bypass JWT expiration checks in Perry library to retain authenticated access indefinitely using expired tokens.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-613","name":"DEPRECATED: Insufficient Session Expiration"}],"description":"Perry before 0.5.1166 contains a JWT validation vulnerability that allows remote attackers to bypass token expiration by exploiting the unconditional setting of validate_exp = false in the verify_decode helper within the stdlib JWT verification path. Attackers in possession of a previously issued bearer token can present expired tokens to any jwt.verify() call and retain authenticated access indefinitely, bypassing force-expired sessions such as user logout or administrative revocation.","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":"Perry \u003c 0.5.1166 JWT Expiration Bypass via verify_decode","id":"CVE-2026-53776","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":"Perry \u003c 0.5.1159 Path Traversal via ArtifactReady WebSocket","id":"CVE-2026-53777"},"packages":[],"prev":{"headline":"Avo: Direct attachment upload endpoint lacks upload authorization and bypasses field-level upload policy","id":"CVE-2026-53769"},"products":["perry"],"published":"2026-06-16","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":"total"},"state":"PUBLISHED","updated":"2026-07-14","vendors":["PerryTS"]},"summary":"Attackers can bypass JWT expiration checks in Perry library to retain authenticated access indefinitely using expired tokens.","url":"https://insights.sbomify.com/CVE-2026-53776/"}