CVE WatchSep 28, 2026

CVE-2026-55160

Stringer is a self-hosted, anti-social RSS reader. Prior to commit 75cb095, an unrestricted Server-Side Request Forgery (SSRF) vulnerability

CVSS

7.6

High

EPSS

0.3%

p20

KEV

—

Exploit Today

0-100

Published: Sep 28, 2026 · Last modified: Sep 28, 2026 · CWE-918

EPSS · 30d

0.3%EPSS · 30 days0.3%

2026-09-292026-10-25

Technical description

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.

Official references

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