TI-2026-81117 Aliases CVE-2026-117541 GHSA-82gx-99vw-x254

Uncaught LogicException in svg-sanitizer sanitize() enables denial of service

LOW 36CWE-248Published 2026-10-27 · Updated 2026-10-27

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-248.

Summary

svg-sanitizer from 0.11.0 before 1.1.0 contains an uncaught exception flaw in Sanitizer::sanitize(). Remote, unauthenticated attackers can submit well-formed XML without a top-level svg root, or with a nested svg element, causing the function to throw a LogicException instead of returning false. This crashes callers such as worker processes and can bypass upload rejection (CWE-248).

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

svg-sanitizer from 0.11.0 before 1.1.0 contains an uncaught exception vulnerability that allows attackers to crash callers by submitting well-formed XML without a top-level svg root. Attackers can supply documents with a non-svg root or nested svg element, causing Sanitizer::sanitize() to throw a LogicException instead of returning false, crashing workers or bypassing upload rejection.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00313 24th percentileScored 2026-11-07

Fix Fixed svg-sanitizer (darylldoyle): 1.1.0

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

Vendor	Product	Affected versions	Fixed in	Status	Source
darylldoyle	svg-sanitizer	0.11.0 to before 1.1.0	1.1.0	Patch available	CNA

svg-sanitizer Vendordarylldoyle Affected 0.11.0 to before 1.1.0 Fixed in 1.1.0 Patch available CNA

Remediation

Upgrade svg-sanitizer to version 1.1.0.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Fix · CNA svg-sanitizer (darylldoyle) Fixed in 1.1.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-10-27
darylldoyle svg-sanitizer 1.1.0
2 records Highest priority Priority HIGH 1 HIGH, 1 LOW
Other records, highest priority first
- TI-2026-81116 Quadratic CPU exhaustion in svg-sanitizer PHP tag strippingPriority HIGH 77
Show all 2 records →

Timeline

2026-10-27 Threatist record created from CVE-2026-117541
2026-10-27 CISA SSVC decision points changed
2026-10-27 Priority changed: MEDIUM → LOW
2026-10-27 Alias added: GHSA-82gx-99vw-x254

References

Patch 1

https://github.com/darylldoyle/svg-sanitizer/commit/9ba9001493f5da737759303f13bd965ebdaa778c

Advisory 1

GitHub Security Advisory (GHSA-cgcm-4g72-hfgw)

TI-2026-81116 Quadratic CPU exhaustion in svg-sanitizer PHP tag stripping CVSS 4.0HIGH 8.7
TI-2026-84327 svg-sanitizer ReDoS and Fail-Open via image-set CSS Stripping CVSS 4.0HIGH 8.2
TI-2026-74075 Mixed-case xlink:HrEf bypasses use nesting limit in svg-sanitizer CVSS 3.1MEDIUM 6.5
TI-2026-69645 Denial of service in enshrined/svg-sanitize via crafted SVG DTD CVSS 3.1MEDIUM 6.5
TI-2026-84328 Incomplete url() filtering in svg-sanitizer allows remote URL requests CVSS 4.0MEDIUM 5.3
TI-2026-81115 darylldoyle svg-sanitizer CSS Injection and Remote Reference Bypass CVSS 4.0MEDIUM 5.1

See all 11 →

Sources

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