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TI-2021-18917 Aliases CVE-2021-42704GHSA-x8w5-m57q-vrj4

Inkscape Out-of-bounds Write

Priority HIGH 69CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Will not fix Red Hat: no fix planned

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

Inkscape version 0.91 is vulnerable to an out-of-bounds write, which may allow an attacker to arbitrary execute code.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01555 75th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Will not fix Red Hat: no fix planned

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
InkscapeInkscape0.91—No fix listedCNA
  • Inkscape VendorInkscape Affected 0.91 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:inkscape:inkscape:0.91:*:*:*:*:*:*:*0.91VulnerableInkscape
  • cpe:2.3:a:inkscape:inkscape:0.91:*:*:*:*:*:*:* Versions 0.91 Vulnerable ·Inkscape

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Not affected: 2 products
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-42704
  2. 2026-10-03 Alias added: GHSA-x8w5-m57q-vrj4

References

Exploit 1

Advisory 1

  • TI-2026-04341 Improper Restriction of XML External Entity Reference in Inkscape CVSS 3.1MEDIUM 6.3
  • TI-2021-18915 Inkscape Access of Uninitialized Pointer CVSS 3.1LOW 3.3
  • TI-2021-18913 Inkscape Out-of-bounds Read CVSS 3.1LOW 3.3
  • TI-2005-03531 Buffer overflow in the SVG importer (style.cpp) of inkscape 0.41 through 0.42.2 might… CVSS 2.0MEDIUM 5.1
  • TI-2007-01406 Format string vulnerability in the whiteboard Jabber protocol in Inkscape before 0.45.1… CVSS 2.0MEDIUM 6.8
  • TI-2007-01405 Format string vulnerability in Inkscape before 0.45.1 allows user-assisted remote… CVSS 2.0MEDIUM 6.8
See all 9 →

Sources

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