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ALSA-2026:47085 — Important: rest security update

Affected: AlmaLinux:10: rest, AlmaLinux:10: rest-devel

The rest packages provide a library for access to the RESTful web services.

Security Fix(es):

* librest: weak random number generation in PKCE implementation (CVE-2026-16615)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

EUVD-2026-362657

fkie_cve-2026-16615

A flaw was found in librest. The PKCE implementation for OAuth authorization uses the GRand function from the GLib API, a cryptographically insecure pseudo-random number generator. Because the generated "code verifier" lacks sufficient cryptographic entropy, a malicious actor can reverse-engineer the pseudo-random number generator (PRNG) seed to predict or reconstruct the code verifier string, allowing an attacker to bypass PKCE protections and successfully impersonate the client during the OAuth 2.0 authorization flow.

GHSA-223h-642r-2f6v

msrc_CVE-2026-16615 — Librest: weak random number generation in pkce implementation

msrc_CVE-2026-16615

OESA-2026-3974 — rest security update

Affected: openEuler:24.03-LTS-SP1: rest

This library has been designed to make it easier to access web services that claim to be &quot;RESTful&quot;. It comprises of two parts: the first aims to make it easier to make requests by providing a wrapper around libsoup, the second aids with XML parsing by wrapping libxml2. Security Fix(es):

openSUSE-SU-2026:11477-1 — librest-1_0-0-0.10.2-2.1 on GA media

librest-1_0-0-0.10.2-2.1 on GA media

RHSA-2026:62222 — Red Hat Security Advisory: rest security update

librest: weak random number generation in PKCE implementation

RLSA-2026:47085 — Important: rest security update

Affected: Rocky Linux:10: rest

The rest packages provide a library for access to the RESTful web services.

Security Fix(es):

* librest: weak random number generation in PKCE implementation (CVE-2026-16615)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

SUSE-SU-2026:23564-1 — Security update for librest

Security update for librest

UBUNTU-CVE-2026-16615

Affected: Ubuntu:16.04:LTS: librest, Ubuntu:18.04:LTS: librest, Ubuntu:20.04:LTS: librest, Ubuntu:22.04:LTS: librest, Ubuntu:24.04:LTS: librest, Ubuntu:26.04:LTS: librest

WID-SEC-W-2026-2553 — Red Hat Enterprise Linux (librest, pipewire): Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um Sicherheitsvorkehrungen zu umgehen und beliebigen Code auszuführen.