CVE-2026-114457

LOW 3.7

Mod_qos: missing nul termination in json value escaping permits out-of-bounds reads

CVSS Score

3.7

EPSS Score

0.0%

EPSS Percentile

0th

A flaw was found in mod_qos. An unauthenticated remote attacker could cause a Denial of Service (DoS) by sending a specially crafted JSON request when JSON body filtering is enabled. Due to improper string termination during the processing of percent-encoded input, the module reads past allocated memory boundaries, which can cause an Apache worker process to crash.

CWE	CWE-170
Vendor	pbuchbinder
Product	mod_qos
Published	Oct 22, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Affected Versions

pbuchbinder / mod_qos

11.74 11.76 11.79

References

NVD ↗ CVE.org ↗ EPSS Data ↗

access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-114457 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2558311

Credits

Red Hat would like to thank Robin "drzobin" Larsson for reporting this issue.