[UPDATE] [hoch] Apache Portable Runtime (APR): Mehrere Schwachstellen

highCVE-2025-49506 CVE-2026-32327 CVE-2026-34191 CVE-2026-34501 CVE-2026-34502

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apache Portable Runtime (APR) ausnutzen, um SQL-Injection durchzuführen, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand auszulösen.

CSIRTS triage

vendor: Apache product: Portable Runtime (APR)SQL injection Information disclosure Denial of service

What: Multiple vulnerabilities enable SQL injection, information disclosure, and denial-of-service attacks.
Who is affected: Remote anonymous attackers can exploit all systems running vulnerable Apache Portable Runtime versions.
Urgency: High severity due to multiple attack vectors and remote exploitability without authentication.
Action: Apply security patches to Apache Portable Runtime immediately.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-09-04
Exploitation: Not in CISA KEV at last sync

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2697

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-2025-495060.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 33% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-323270.48% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-341910.36% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-345010.53% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 42% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-345020.53% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 42% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-49506	coverage & exploitation status	NVD · CVE.org
CVE-2026-32327	coverage & exploitation status	NVD · CVE.org
CVE-2026-34191	coverage & exploitation status	NVD · CVE.org
CVE-2026-34501	coverage & exploitation status	NVD · CVE.org
CVE-2026-34502	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Apache Portable Runtime (APR)

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-2026-34502: Apache Portable Runtime Utility: Heap buffer overflow in APR memcached clientmsrc · 2026-08-11
criticalCVE-2026-34191: Apache Portable Runtime Utility: SQL Injection in apr_dbd_oraclemsrc · 2026-08-11
mediumCVE-2026-32327: Apache Portable Runtime Utility: apr-util XML stack recursion crashmsrc · 2026-08-11
highCVE-2025-49506: Apache Portable Runtime Utility: apr_password_validate() vulnerable to timing attackmsrc · 2026-08-11
highCVE-2026-34501: Apache Portable Runtime Utility: Heap buffer overflow in APR redis clientmsrc · 2026-08-11
criticalCVE-2026-34191: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerabi…nvd · 2026-08-06