CVE-2026-32327 — CRITICAL (9.1)

Q: How severe is CVE-2026-32327?

CVE-2026-32327 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2026-32327?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Apr-Util.

Vulnerability Description

A bug in APR-util version 1.6.3 (and earlier) allows a stack recursion attack against any library consumer which parses XML from untrusted sources and uses the apr_xml_quote_elem() function. Users are recommended to upgrade to version 1.6.4, which fixes this issue.

CVSS Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apache	Apr-Util	< 1.6.4

Related Weaknesses (CWE)

CWE-674

References

https://lists.apache.org/thread/hq27vj8yfno9tkwv0fpj6jksfzgxvth1Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/08/06/9Mailing ListThird Party Advisory

FAQ

What is CVE-2026-32327?

CVE-2026-32327 is a vulnerability with a CVSS score of 9.1 (CRITICAL). A bug in APR-util version 1.6.3 (and earlier) allows a stack recursion attack against any library consumer which parses XML from untrusted sources and uses the apr_xml_quote_elem() function. Users ar...

How severe is CVE-2026-32327?

CVE-2026-32327 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-32327?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Apr-Util.