Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) Affecting rest-debuginfo package, versions <0:0.9.1-11.el10_2.1


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.44% (38th percentile)

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  • Snyk IDSNYK-CENTOS10-RESTDEBUGINFO-18382041
  • published29 Jul 2026
  • disclosed8 Jun 2026

Introduced: 8 Jun 2026

CVE-2026-16615  (opens in a new tab)
CWE-338  (opens in a new tab)

How to fix?

Upgrade Centos:10 rest-debuginfo to version 0:0.9.1-11.el10_2.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rest-debuginfo package and not the rest-debuginfo package as distributed by Centos. See How to fix? for Centos:10 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1