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Not in CISA KEV

CVE-2026-26194 gogs

Fix: gogs/gogs@a000f0c

CVE-2026-26194 is a CWE-88 vulnerability in gogs.io/gogs. A fix is available for gogs.io/gogs — see the affected versions and patch details below.

Gogs: Release tag option injection in release deletion

Also known asGHSA-v9vm-r24h-6rqmGO-2026-4617
Published
Mar 5, 2026
Updated
Aug 12, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Sep 21, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-26194.

EPSS Exploitation Probability

via FIRST.org ↗
0.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs42th percentile — riskier than 42% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

1 pkg affected
🐹gogs.io/gogs

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Summary

There is a security issue in Gogs where deleting a release can fail if a user-controlled tag name is passed to Git without the right separator, allowing Git option injection and therefore interfering with the process.

Affected Component

  • internal/database/release.go process.ExecDir(..., "git", "tag", "-d", rel.TagName)

Details

rel.TagName is used as a CLI argument to git tag -d without -- or --end-of-options. If the tag name begins with -, Git parses it as a flag.

The prior mitigation is incomplete. There is path sanitization in place during creation:

  • internal/database/release.go r.TagName = strings.TrimLeft(r.TagName, "-")

But it only covers one creation path and does not reliably protect tag deletions, such as tags added through git push or ref updates.

Exploit Conditions

  1. An attacker can add a tag name that starts with a dash into the repository.
  2. A user with permission to delete releases triggers it through the web UI or API.

Recommended Fix

  1. Add end-of-options in release deletion:
    • git tag -d -- <tagName>
  2. It is better to use the safe git-module deletion helper since it handles options properly.
  3. All Git commands should be audited for user input, ensuring that the end-of-options separator is always used.

Impact

  • Option injection into git tag -d
  • Tag/release deletion can fail or behave unexpectedly
  • Operational denial of service in release cleanup workflows
  • Potential release metadata inconsistency

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogogs.io/gogsall versions0.14.2go get gogs.io/gogs@v0.14.2

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for gogs.io/gogs, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update gogs.io/gogs to 0.14.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-26194 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2026-26194 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2026-26194. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Summary There is a security issue in Gogs where deleting a release can fail if a user-controlled tag name is passed to Git without the right separator, allowing Git option injection and therefore interfering with the process. ### Affected Component - internal/database/release.go `process.ExecDir(..., "git", "tag", "-d", rel.TagName)` ### Details `rel.TagName` is used as a CLI argument to `git tag -d` without `--` or `--end-of-options`. If the tag name begins with `-`, Git parses it as a flag. The prior mitigation is incomplete. There is path sanitization in place during c
O3 Security · Impact-Aware SCA

Is CVE-2026-26194 in your dependencies?

O3 Security finds CVE-2026-26194 across Go dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

CVE-2026-26194: gogs DoS | O3 Security