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TI-2026-79216 Aliases CVE-2026-114460GHSA-9p33-c7gr-v3rw

Query truncation in mod_qos lets attackers bypass security rules

Priority LOW 30CWE-193Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

The pbuchbinder mod_qos module from 11.74, 11.76 and 11.79 contains an off-by-one error (CWE-193) when it merges request body parameters into the URL query. The query string is truncated during security evaluation while the actual request stays unchanged. An unauthenticated remote attacker can submit a crafted request that hides prohibited values from inspection, bypassing configured security rules.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

A flaw was found in mod_qos. An off-by-one pointer calculation error occurs when merging request body parameters with an existing URL query, which truncates the query string during security evaluation while leaving the actual request unchanged. An unauthenticated remote attacker could exploit this vulnerability by submitting a crafted request that conceals prohibited values from inspection, resulting in a bypass of configured security rules.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00275 19th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
pbuchbindermod_qos11.74; 11.76; 11.79—No fix listedCNA
  • mod_qos Vendorpbuchbinder Affected 11.74; 11.76; 11.79 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for mod_qos.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-22 Threatist record created from CVE-2026-114460
  2. 2026-10-22 Alias added: GHSA-9p33-c7gr-v3rw
  3. 2026-10-22 Affected versions changed · Red Hat
  4. 2026-10-22 CVSS score added · Red Hat
  5. 2026-10-30 CISA SSVC decision points changed

References

Other 2

  • TI-2026-79214 Heap overflow in mod_qos connection monitor enables denial of service CVSS 3.1MEDIUM 5.9
  • TI-2026-79215 Mod_qos: out-of-bounds reads in response-body substring matching CVSS 3.1LOW 3.7
  • TI-2026-79213 Missing string termination in mod_qos JSON escaping crashes Apache CVSS 3.1LOW 3.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences