It was discovered that APR-util incorrectly performed password hash comparisons in a way that was not constant-time. An attacker could possibly use this issue to obtain sensitive information. ( CVE-2025-49506 ) It was discovered that APR-util incorrectly handled recursive XML element quoting. An attacker could possibly use this issue to cause applications using APR-util to crash, resulting in a denial of service. ( CVE-2026-32327 ) It was discovered that the APR-util Redis client incorrectly handled certain network data, resulting in a heap-based buffer overflow. A remote attacker could possibly use this issue to cause APR-util applications to crash or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (
It was discovered that APR-util incorrectly performed password hash comparisons in a way that was not constant-time. An attacker could possibly use this issue to obtain sensitive information. ( CVE-2025-49506 )
It was discovered that APR-util incorrectly handled recursive XML element quoting. An attacker could possibly use this issue to cause applications using APR-util to crash, resulting in a denial of service. ( CVE-2026-32327 )
It was discovered that the APR-util Redis client incorrectly handled certain network data, resulting in a heap-based buffer overflow. A remote attacker could possibly use this issue to cause APR-util applications to crash or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (
It was discovered that APR-util incorrectly performed password hash comparisons in a way that was not constant-time. An attacker could possibly use this issue to obtain sensitive information. ( CVE-2025-49506 ) It was discovered that APR-util incorrectly handled recursive XML element quoting. An attacker could possibly use this issue to cause applications using APR-util to crash, resulting in a denial of service. ( CVE-2026-32327 ) It was discovered that the APR-util Redis client incorrectly handled certain network data, resulting in a heap-based buffer overflow. A remote attacker could possibly use this issue to cause APR-util applications to crash or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. ( CVE-2026-34501 ) It was discovered that the APR-util memcached client incorrectly handled certain network data, resulting in a heap-based buffer overflow. A remote attacker could possibly use this issue to cause APR-util applications to crash or execute arbitrary code. ( CVE-2026-34502 )
It was discovered that APR-util incorrectly performed password hash comparisons in a way that was not constant-time. An attacker could possibly use this issue to obtain sensitive information. ( CVE-2025-49506 )
It was discovered that APR-util incorrectly handled recursive XML element quoting. An attacker could possibly use this issue to cause applications using APR-util to crash, resulting in a denial of service. ( CVE-2026-32327 )
It was discovered that the APR-util Redis client incorrectly handled certain network data, resulting in a heap-based buffer overflow. A remote attacker could possibly use this issue to cause APR-util applications to crash or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. ( CVE-2026-34501 )
It was discovered that the APR-util memcached client incorrectly handled certain network data, resulting in a heap-based buffer overflow. A remote attacker could possibly use this issue to cause APR-util applications to crash or execute arbitrary code. ( CVE-2026-34502 )
In general, a standard system update will make all the necessary changes.
The problem can be corrected by updating your system to the following package versions:
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The full story
This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.
