High severity · published Aug 6, 2026
CVE-2026-34502
Apache Portable Runtime Utility: Heap buffer overflow in APR memcached client
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
Heap-based Buffer Overflow vulnerability in Apache Portable Runtime Utility memcached client
This issue affects Apache Portable Runtime Utility: from 1.3.0 through 1.6.3.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AP
Apache Portable Runtime Utility · Apache Software Foundation
1.3.0 through 1.6.3 · source: vendor
AP
Apr-util · Apache
1.3.0 through 1.6.3 · source: NVD
Affected product
AP
Apache Portable Runtime Utility
Apache Software Foundation
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-34502
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-34502
Mailing List
https://lists.apache.org/thread/spk5643m4vq0mb8h5b9hz9gkp57ombl8
Mailing List
http://www.openwall.com/lists/oss-security/2026/08/06/12
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