Description
Octo-STS is a GitHub App that acts like a Security Token Service (STS) for the GitHub API. Octo-STS versions before v0.5.3 are vulnerable to unauthenticated SSRF by abusing fields in OpenID Connect tokens. Malicious tokens were shown to trigger internal network requests which could reflect error logs with sensitive information. Upgrade to v0.5.3 to resolve this issue. This version includes patch sets to sanitize input and redact logging.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| octo-sts | app | < 0.5.3 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | govulncheck-vulndb | 0.0.20250730T213748-1.1 | openSUSE-SU-2025:15405-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | octo-sts +1 | 0.5.3-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/octo-sts/app | < 0.5.3 | 0.5.3 | GHSA-h3qp-hwvr-9xcq |
Advisories 1
- openSUSE-SU-2025:15405-1 govulncheck-vulndb-0.0.20250730T213748-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026