{"answers":{"affected":"3 open source packages ship an affected version, including code.gitea.io/gitea.","exploited":"There is no known exploitation of CVE-2026-27780 in the wild and no public exploit code.","fix":"Upgrade code.gitea.io/gitea to 1.26.0 or later.","what":"CVE-2026-27780 is a critical vulnerability in Gitea Open Source Git Server, published on 3 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-2026-27780 and fix it if it is affected.\n\nWhat it is: CVE-2026-27780 is a critical vulnerability in Gitea Open Source Git Server, published on 3 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-2026-27780 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- code.gitea.io/gitea (Go): affected all versions; fixed in 1.26.0\n- code.gitea.io/gitea (Go): affected all versions; fixed in 1.26.0\n- code.gitea.io/gitea (Go): affected all versions; fixed in 1.26.0\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-2026-27780/ (Markdown: https://insights.sbomify.com/CVE-2026-27780/index.md)","id":"CVE-2026-27780","markdown":"https://insights.sbomify.com/CVE-2026-27780/index.md","name":"CVE-2026-27780","record":{"aliases":["GHSA-vhq7-fwwh-7hjf","GO-2026-6346"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Git server","requires_auth":"none","summary":"Attackers can bypass branch-protection checks in Gitea by sending oversized input that causes scanner errors, allowing unauthorized code pushes.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Gitea","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"Gitea versions before 1.26.0 do not fail closed on bufio.Scanner errors while processing pre-receive hook input, allowing oversized input to bypass branch-protection checks.","ecosystems":["Go"],"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":"Gitea pre-receive hook can miss branch-protection checks after scanner errors","id":"CVE-2026-27780","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"kernel_liteos_a has an integer overflow vulnerability","id":"CVE-2026-27781"},"packages":[{"ecosystem":"Go","fixed":["1.26.0"],"introduced":["0"],"last_affected":[],"package":"code.gitea.io/gitea","purl":null,"source":"GHSA-vhq7-fwwh-7hjf"},{"ecosystem":"Go","fixed":["1.26.0"],"introduced":["0"],"last_affected":[],"package":"code.gitea.io/gitea","purl":"pkg:golang/code.gitea.io/gitea","source":"GHSA-vhq7-fwwh-7hjf"},{"ecosystem":"Go","fixed":["1.26.0"],"introduced":["0"],"last_affected":[],"package":"code.gitea.io/gitea","purl":"pkg:golang/code.gitea.io/gitea","source":"GO-2026-6346"}],"prev":{"headline":"Gitea forwarded-proto handling allows public URL spoofing","id":"CVE-2026-27779"},"products":["Gitea Open Source Git Server"],"published":"2026-07-03","related":[],"sources":[{"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":"Go Vulnerability Database","prefix":"GO"},{"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":"2026-07-06","vendors":["Gitea"]},"summary":"Attackers can bypass branch-protection checks in Gitea by sending oversized input that causes scanner errors, allowing unauthorized code pushes.","url":"https://insights.sbomify.com/CVE-2026-27780/"}