[NEW] [high] Red Hat Enterprise Linux (librest, pipewire): Multiple vulnerabilities
An attacker can exploit multiple vulnerabilities in Red Hat Enterprise Linux to bypass security measures and execute arbitrary code.
CSIRTS triage
- What
- An attacker can exploit multiple vulnerabilities to bypass security measures and execute arbitrary code.
- Who is affected
- Users of Red Hat Enterprise Linux are affected.
- Urgency
- Remediation is urgent due to high severity and potential for exploitation.
- Action
- Update Red Hat Enterprise Linux to the latest version to mitigate the vulnerabilities.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2553
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-166150.25% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all scored CVEs.
- Low exploitation riskCVE-2026-56740.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-16615 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-5674 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- mediumCVE-2026-16615: A flaw was found in librest. The PKCE implementation for OAuth authorization uses the GRand fu…nvd
- highCVE-2026-5674: A flaw was found in PipeWire, a multimedia server. This vulnerability allows an attacker to esc…nvd
- mediumCVE-2026-16615: Librest: weak random number generation in pkce implementationmsrc
Recent advisories for Red Hat Enterprise
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- highCVE-2026-18358: A flaw was found in gnome-remote-desktop as shipped in Red Hat Enterprise Linux. When the daem…nvd · 2026-07-31
- medium[NEW] [medium] Red Hat Enterprise Linux (go-billy): Vulnerability allows Denial of Servicecert-bund · 2026-07-31
- high[NEW] [high] Red Hat Enterprise Linux (sssd, glib, c-ares): Multiple vulnerabilitiescert-bund · 2026-07-31
- medium[NEW] [medium] Red Hat Enterprise Linux (python-pillow): Multiple vulnerabilities allow denial of servicecert-bund · 2026-07-31
- medium[NEW] [medium] Red Hat Enterprise Linux (libsolv, aardvark-dns): Multiple vulnerabilitiescert-bund · 2026-07-31
- medium[NEW] [medium] Red Hat Enterprise Linux (freeipmi): Vulnerability allows denial of servicecert-bund · 2026-07-31
More from CERT-Bund (BSI) Security Advisories
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow Denial of Service2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow unspecified attack2026-07-31