CVE Catalog

CVE-2026-55160

HighCVSS 7.6
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.28%

18th percentile - higher than 18% of all known CVEs

Summary

Stringer is a self-hosted, anti-social RSS reader. Prior to commit 75cb095, an unrestricted Server-Side Request Forgery (SSRF) vulnerability allows any authenticated user to force the Stringer server to send arbitrary HTTP/HTTPS requests to internal networks, localhost services, and cloud metadata endpoints (e.g. AWS IMDS 169.254.169.254). When self-service signup is enabled (Setting::UserSignup), even a low-privileged registered user can exploit this to scan internal services or steal cloud IAM credentials. This issue has been patched via commit 75cb095.

Risk Assessment

The risk includes the ability to scan internal networks, access local services, and steal cloud credentials, potentially leading to infrastructure and data compromise.

Recommendation

Update Stringer to a version containing commit 75cb095 and consider disabling self-service signup if not necessary.

Related vulnerabilities

Original NVD description (English source)

Stringer is a self-hosted, anti-social RSS reader. Prior to commit 75cb095, an unrestricted Server-Side Request Forgery (SSRF) vulnerability allows any authenticated user to force the Stringer server to send arbitrary HTTP/HTTPS requests to internal networks, localhost services, and cloud metadata endpoints (e.g. AWS IMDS 169.254.169.254). When self-service signup is enabled (Setting::UserSignup), even a low-privileged registered user can exploit this to scan internal services or steal cloud IAM credentials. This issue has been patched via commit 75cb095.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS