Heap-based Buffer Overflow in Apache Portable Runtime Utility Redis Client
CVE-2026-34501

7.5HIGH

Key Information:

Vendor

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

What is CVE-2026-34501?

A heap-based buffer overflow vulnerability exists within the Apache Portable Runtime Utility's redis client. This flaw affects versions 1.6.0 through 1.6.3, potentially allowing attackers to exploit it to execute arbitrary code or cause a crash. Users are strongly advised to upgrade to version 1.6.4, which resolves this vulnerability. For detailed information and mitigation strategies, please refer to the vendor's advisory.

Affected Version(s)

Apache Portable Runtime Utility 1.6.0 <= 1.6.3

References

https://lists.apache.org/thread/o8h6c7cq86fplxlnry6c3rn9x...
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
.