How severe is CVE-2026-26196?

No CVSS score has been assigned to CVE-2026-26196 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2026-26196?

CVE-2026-26196 affects the following packages: gogs.io/gogs (Go). Ecosystems affected: Go.

How do I fix CVE-2026-26196?

No patched version of gogs.io/gogs has shipped for CVE-2026-26196 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

How do I detect CVE-2026-26196 in my Go dependencies?

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.

How do I mitigate CVE-2026-26196 if there is no patch (or I can't update yet)?

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.

How does O3 Security protect against CVE-2026-26196?

O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2026-26196 can be triaged on real exposure rather than presence alone.

Is CVE-2026-26196 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-26196 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2026-26196?

CVE-2026-26196 has an EPSS (Exploit Prediction Scoring System) score of 0.3%, placing it in the 17th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2026-26196?

CVE-2026-26196 is classified as CWE-598 (CWE-598). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2026-26196 published, and has it been updated?

CVE-2026-26196 was published on March 5, 2026 and was last updated on August 12, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐹 Go

Not in CISA KEV

CVE-2026-26196 — gogs

Fix: gogs/gogs@295bfba

CVE-2026-26196 is a CWE-598 vulnerability in gogs.io/gogs. No vendor fix is recorded yet; mitigation options are listed below.

Gogs: Access tokens get exposed through URL params in API requests

Also known asGHSA-x9p5-w45c-7ffcGO-2026-4619

Published

Mar 5, 2026

Updated

Aug 12, 2026

Affected

1 pkg

Patched

See advisory

Exploits

None indexed

Exploitation data as of Sep 22, 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-2026-26196.

EPSS Exploitation Probability

via FIRST.org ↗

0.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs17th percentile — riskier than 17% 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

The Gogs API still accepts tokens in URL parameters such as token and access_token, which can leak through logs, browser history, and referrers.

Details

A static review shows that the API still checks tokens in the URL query before looking at headers:

internal/context/auth.go reads c.Query("token")
internal/context/auth.go falls back to c.Query("access_token")
internal/context/auth.go only checks the Authorization header when the query token is empty
internal/context/auth.go authenticates using that token and marks the request as token-authenticated

Token-authenticated requests are accepted by API routes through c.IsTokenAuth checks:

internal/route/api/v1/api.go

Impact

If tokens are sent in URLs such as /api/v1/user?token=..., they can leak in logs, browser or shell history, and referrer headers, and can be reused until revoked.

Recommended Fix

Authentication headers should be used exclusively for token transmission.
Token parameters should be blocked at the proxy or WAF level.
Query strings should be scrubbed from logs.
A strict referrer policy should be set.

Remediation

A fix is available at https://github.com/gogs/gogs/releases/tag/v0.14.2.

Affected Packages

1 total

Ecosystem	Package	Vulnerable range	Fix
🐹Go	`gogs.io/gogs`	all versions	No fix

Detection & mitigation playbook

Open-source dependency

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.
Remediation status
No patched version of gogs.io/gogs has shipped for CVE-2026-26196 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
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.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2026-26196 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2026-26196. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Summary The Gogs API still accepts tokens in URL parameters such as `token` and `access_token`, which can leak through logs, browser history, and referrers. ### Details A static review shows that the API still checks tokens in the URL query before looking at headers: - internal/context/auth.go reads `c.Query("token")` - internal/context/auth.go falls back to `c.Query("access_token")` - internal/context/auth.go only checks the `Authorization` header when the query token is empty - internal/context/auth.go authenticates using that token and marks the request as token-authenticate

O3 Security · Impact-Aware SCA

Is CVE-2026-26196 in your dependencies?

O3 Security finds CVE-2026-26196 across Go dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

Scan my dependencies How O3 SCA works