CVE-2026-58511 Webhook Authorization Header Returned in Plaintext via API
Low 2.7
Published
Updated
Check this codebase for CVE-2026-58511 and fix it if it is affected.
What it is: CVE-2026-58511 is a low-severity vulnerability in Gitea Open Source Git Server, published on 13 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-58511 exists.
Affected packages and fixed versions:
- code.gitea.io/gitea (Go): affected all versions; fixed in 1.27.0
- code.gitea.io/gitea (Go): affected all versions; fixed in 1.27.0
- gitea.dev (Go): affected all versions; fixed in 1.27.0
Task:
1. 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.
2. 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.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-58511/ (Markdown: https://insights.sbomify.com/CVE-2026-58511/index.md)
Attackers can retrieve webhook authorization headers in plaintext via the API, exposing sensitive credentials in Gitea Git Server.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-58511?
CVE-2026-58511 is a low-severity vulnerability in Gitea Open Source Git Server, published on 13 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Webhook Authorization Header Returned in Plaintext via API
Weakness: CWE-200
Which versions are affected by CVE-2026-58511?
3 open source packages ship an affected version, including code.gitea.io/gitea and gitea.dev.
| Package | Affected | Fixed in |
|---|---|---|
code.gitea.io/gitea Go | All versions | 1.27.0 |
code.gitea.io/gitea Go | All versions | 1.27.0 |
gitea.dev Go | All versions | 1.27.0 |
How do I fix CVE-2026-58511?
Upgrade code.gitea.io/gitea to 1.27.0 or later.
Is CVE-2026-58511 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-58511 exists.
Sources
Also known as GHSA-3r5c-2xxx-h872, GO-2026-6040, MINI-3f44-6hhm-phcr, MINI-75j2-wccf-w42g.