{"answers":{"affected":"3 open source packages ship an affected version, including code.gitea.io/gitea.","exploited":"There is no known exploitation of CVE-2026-27779 in the wild and no public exploit code.","fix":"Upgrade code.gitea.io/gitea to 1.25.5 or later.","what":"CVE-2026-27779 is a high-severity 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-2026-27779 and fix it if it is affected.\n\nWhat it is: CVE-2026-27779 is a high-severity 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-2026-27779 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 1.25.5\n- code.gitea.io/gitea (Go): affected all versions; fixed in 1.25.5\n- code.gitea.io/gitea (Go): affected all versions; fixed in 1.25.5\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-2026-27779/ (Markdown: https://insights.sbomify.com/CVE-2026-27779/index.md)","id":"CVE-2026-27779","markdown":"https://insights.sbomify.com/CVE-2026-27779/index.md","name":"CVE-2026-27779","record":{"aliases":["GHSA-v8f2-2ghq-9whv","GO-2026-6345"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Git server","requires_auth":"none","summary":"Attackers can spoof canonical URLs in Gitea by injecting malformed forwarded-proto headers, potentially misleading users or bypassing security checks.","user_interaction":"not_required","vuln_class":"open_redirect"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Gitea","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:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"Gitea versions before 1.25.5 accept malformed or injected forwarded-proto values when detecting public URLs, allowing spoofed canonical URL generation.","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 forwarded-proto handling allows public URL spoofing","id":"CVE-2026-27779","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"open_redirect","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"Gitea pre-receive hook can miss branch-protection checks after scanner errors","id":"CVE-2026-27780"},"packages":[{"ecosystem":"Go","fixed":["1.25.5"],"introduced":["0"],"last_affected":[],"package":"code.gitea.io/gitea","purl":null,"source":"GHSA-v8f2-2ghq-9whv"},{"ecosystem":"Go","fixed":["1.25.5"],"introduced":["0"],"last_affected":[],"package":"code.gitea.io/gitea","purl":"pkg:golang/code.gitea.io/gitea","source":"GHSA-v8f2-2ghq-9whv"},{"ecosystem":"Go","fixed":["1.25.5"],"introduced":["0"],"last_affected":[],"package":"code.gitea.io/gitea","purl":"pkg:golang/code.gitea.io/gitea","source":"GO-2026-6345"}],"prev":{"headline":"ePower epower.ie Improper Restriction of Excessive Authentication Attempts","id":"CVE-2026-27778"},"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":"partial"},"state":"PUBLISHED","updated":"2026-07-06","vendors":["Gitea"]},"summary":"Attackers can spoof canonical URLs in Gitea by injecting malformed forwarded-proto headers, potentially misleading users or bypassing security checks.","url":"https://insights.sbomify.com/CVE-2026-27779/"}