HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-73629 — Serendipity before 2.6.0 contains a server-side request forgery vulnerability in...

·Source: NIST NVD

Updated:

Executive Summary

Serendipity before 2.6.0 contains a server-side request forgery vulnerability in the serendipity_url_allowed() filter that fails to block hex-encoded IPv4 addresses, IPv6 literals, and link-local ranges. Authenticated users with adminImagesAdd permission can bypass the filter using alternate address formats to request internal services and retrieve response bodies through the public uploads direct

Analysis

Serendipity before 2.6.0 contains a server-side request forgery vulnerability in the serendipity_url_allowed() filter that fails to block hex-encoded IPv4 addresses, IPv6 literals, and link-local ranges. Authenticated users with adminImagesAdd permission can bypass the filter using alternate address formats to request internal services and retrieve response bodies through the public uploads directory. CVSS Score: 8.5. Published: 2026-08-13T12:17:28.330.

Indicators of Compromise (1)

CVE (1)
CVE-2026-73629
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Aug 13, 2026. Verified by: NIST.

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