{"answers":{"affected":"3 open source packages ship an affected version, including code.gitea.io/gitea.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-58426 exists.","fix":"Upgrade code.gitea.io/gitea to 1.26.2 or later.","what":"CVE-2026-58426 is a critical missing authorization vulnerability in Gitea Open Source Git Server, published on 3 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-58426 and fix it if it is affected.\n\nWhat it is: CVE-2026-58426 is a critical missing authorization vulnerability in Gitea Open Source Git Server, published on 3 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-58426 exists.\n\nAffected packages and fixed versions:\n- code.gitea.io/gitea (Go): affected from 1.22.0; fixed in 1.26.2\n- code.gitea.io/gitea (Go): affected from 1.22.0; fixed in 1.26.2\n- code.gitea.io/gitea (Go): affected from 1.22.0; fixed in 1.26.2\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-2026-58426/ (Markdown: https://insights.sbomify.com/CVE-2026-58426/index.md)","id":"CVE-2026-58426","markdown":"https://insights.sbomify.com/CVE-2026-58426/index.md","name":"CVE-2026-58426","record":{"aliases":["GHSA-hg5r-vq93-9fv6","GO-2026-6060"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Gitea Git Server","requires_auth":"low_privilege","summary":"Attackers can read artifacts from other repositories and modify upload states due to HMAC ambiguity in signed URLs.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Gitea","cpe":[],"cvss":{"score":9.6,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"Gitea Actions Artifacts V4 signed URL HMAC ambiguity allows cross-repository artifact read and cross-task upload-state write","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Gitea Actions Artifacts V4 signed URL HMAC ambiguity allows cross-repository artifact read and cross-task upload-state write","id":"CVE-2026-58426","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"Private org member list leaked via /members API endpoint — incomplete fix for PR #38145","id":"CVE-2026-58427"},"packages":[{"ecosystem":"Go","fixed":["1.26.2"],"introduced":["1.22.0"],"last_affected":[],"package":"code.gitea.io/gitea","purl":null,"source":"GHSA-hg5r-vq93-9fv6"},{"ecosystem":"Go","fixed":["1.26.2"],"introduced":["1.22.0"],"last_affected":[],"package":"code.gitea.io/gitea","purl":"pkg:golang/code.gitea.io/gitea","source":"GHSA-hg5r-vq93-9fv6"},{"ecosystem":"Go","fixed":["1.26.2"],"introduced":["1.22.0"],"last_affected":[],"package":"code.gitea.io/gitea","purl":"pkg:golang/code.gitea.io/gitea","source":"GO-2026-6060"}],"prev":{"headline":"OAuth token introspection returns metadata of tokens issued to other clients (RFC 7662 section 4 violation)","id":"CVE-2026-58425"},"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":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-06","vendors":["Gitea"]},"summary":"Attackers can read artifacts from other repositories and modify upload states due to HMAC ambiguity in signed URLs.","url":"https://insights.sbomify.com/CVE-2026-58426/"}