CVE-2026-16615
CVE-2026-16615: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium6.8
Medium [CVE-2026-16615] weak random number generation in pkce implementation
CVE-2026-16615Source published Source updated
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. This allows the attacker to hold a valid access token and impersonate the user, access their protected data and perform actions on their behalf. Due to these reasons, this vulnerability has been rated with an important severity. Red Hat severity: Important — CVSS 6.8…
- Affected products in this advisory
- Red Hat Enterprise Linux 10
- Red Hat package: rest
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- rest-0:0.9.1-11.el10_2.1
- RHSA-2026:47085
- Mitigation guidance
- Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.
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