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01 Record

CVE-2026-34502

Apache Portable Runtime Utility: Heap buffer overflow in APR memcached client

HighPUBLISHEDCNA: apache
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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02 Description

Apache Portable Runtime Utility: Heap buffer overflow in APR memcached client

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.50% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 43.1% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-24.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-08-06 14:31Z2 MO AGO
Last updated
2026-08-06 21:56Z2 MO AGO
Reserved
2026-03-30
Assigning CNA
apache
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-122Heap-based Buffer OverflowVariant
  • CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base
Data version
5.2
Document digest
4c338a5051140756991af645ad087de55de60799b23374fd269fb28310be1a51

05 Affected products

VendorProductVersionsPlatforms
Apache Software FoundationApache Portable Runtime Utility1.3.0 to 1.6.3—

06 References

07 Fixed in

AlmaLinux 8

  • apr-util
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-bdb
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-devel
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-ldap
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-mysql
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-odbc
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-openssl
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-pgsql
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-sqlite
    Fixed in 1.6.1-9.el8_10.1

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • apr-util
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-bdb
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-devel
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-ldap
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-mysql
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-odbc
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-openssl
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-pgsql
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-sqlite
    Fixed in 1.6.1-23.el9_8.1

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 10

  • apr-util
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-devel
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-ldap
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-lmdb
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-mysql
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-odbc
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-openssl
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-pgsql
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-sqlite
    Fixed in 1.6.3-23.el10_2.1

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • apr-util
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-bdb
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-devel
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-ldap
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-mysql
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-odbc
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-openssl
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-pgsql
    Fixed in 1.6.1-9.el8_10.1
  • apr-util-sqlite
    Fixed in 1.6.1-9.el8_10.1

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • apr-util
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-bdb
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-devel
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-ldap
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-mysql
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-odbc
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-openssl
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-pgsql
    Fixed in 1.6.1-23.el9_8.1
  • apr-util-sqlite
    Fixed in 1.6.1-23.el9_8.1

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 10

  • apr-util
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-devel
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-ldap
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-lmdb
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-mysql
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-odbc
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-openssl
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-pgsql
    Fixed in 1.6.3-23.el10_2.1
  • apr-util-sqlite
    Fixed in 1.6.3-23.el10_2.1

Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • apr-util
    Fixed in 1.6.3-1+deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • apr-util
    Fixed in 1.6.3-3+deb13u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • apr-util
    Fixed in 1.6.4-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • apr-util
    Fixed in 1.6.1-5ubuntu4.22.04.3

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • apr-util
    Fixed in 1.6.3-1.1ubuntu7.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • apr-util
    Fixed in 1.6.3-3ubuntu3.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • apr-util
    Fixed in 1.5.3-1ubuntu0.1~esm3
    Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • apr-util
    Fixed in 1.6.1-2ubuntu0.1+esm1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 20.04 LTS

  • apr-util
    Fixed in 1.6.1-4ubuntu2.2+esm1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.