PT-2026-63433 · Red Hat · Red Hat Enterprise Linux 10

CVE-2026-16615 · Publicado 2026-07-22 · Atualizado 2026-07-22

Mitre

CVSS v3.1

6.8

Média

Vetor base

AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

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.

Correção

Enumeração de Fraquezas

CWE-338

Identificadores relacionados

CVE-2026-16615

Produtos afetados

Red Hat Enterprise Linux 10

Referências · 4

• https://bugzilla.redhat.com/show_bug.cgi?id=2504432 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-16615 · Nota de Segurança
• https://gitlab.gnome.org/GNOME/librest/-/issues/25 · Nota
• https://access.redhat.com/security/cve/CVE-2026-16615 · Nota