Heap-based Buffer Overflow in Apache Portable Runtime Utility by Apache
CVE-2026-34502

7.5HIGH

Key Information:

Vendor

Apache
Status
Apache Portable Runtime Utility
Vendor
CVE Published:
6 August 2026

What is CVE-2026-34502?

A heap-based buffer overflow vulnerability exists in the Apache Portable Runtime Utility's memcached client, which could allow an attacker to exploit memory management issues. This flaw impacts versions 1.3.0 through 1.6.3, potentially leading to unauthorized access and system instability. Users are advised to update to the latest version to mitigate risks associated with this vulnerability.

Affected Version(s)

Apache Portable Runtime Utility 1.3.0 <= 1.6.3

References

https://lists.apache.org/thread/spk5643m4vq0mb8h5b9hz9gkp...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Elhanan Haenel
.