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TI-2025-27320 Aliases CVE-2025-40929GHSA-q7gx-445j-xwq8

Heap-based buffer overflow in RURBAN Cpanel::JSON::XS

Priority LOW 26CWE-122Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

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

Summary

Cpanel::JSON::XS before version 4.40 for Perl has an integer buffer overflow causing a segfault when parsing crafted JSON, enabling denial-of-service attacks or other unspecified impact

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0046 40th percentileScored 2026-11-07
Fix Fixed Cpanel::JSON::XS (RURBAN): 4.40

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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
RURBANCpanel::JSON::XSbefore 4.404.40Patch availableCNA
  • Cpanel::JSON::XS VendorRURBAN Affected before 4.40 Fixed in 4.40 Patch available CNA

Remediation

  • Fix · CNA Cpanel::JSON::XS (RURBAN) Fixed in 4.40

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-40929
  2. 2026-10-03 Alias added: GHSA-q7gx-445j-xwq8

References

Patch 1

Other 2

  • TI-2026-09955 OS command injection in RURBAN GD CVSS 3.1CRITICAL 9.8
  • TI-2022-24155 The Cpanel::JSON::XS package before 4.33 for Perl performs out-of-bounds accesses in a… CVSS 3.1CRITICAL 9.1
  • TI-2026-08360 Improper handling of exceptional conditions in RURBAN Cpanel::JSON::XS CVSS 3.1HIGH 7.5
  • TI-2026-08187 Type confusion in RURBAN Cpanel::JSON::XS CVSS 3.1HIGH 7.3

Sources

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