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TI-2025-37936 Aliases CVE-2025-61146GHSA-75j9-8g79-fp7r

saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component malloc_stub.c.

Priority MEDIUM 52CWE-401Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-401.

Summary

saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component malloc_stub.c.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00137 3rd 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
Poc
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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:saitoha:libsixel:*:*:*:*:*:*:*:*before 1.8.7Vulnerablesaitoha
  • cpe:2.3:a:saitoha:libsixel:*:*:*:*:*:*:*:* Versions before 1.8.7 Vulnerable ·saitoha

Remediation

No fixed version listed by the sources yet.

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-2025-61146
  2. 2026-10-03 Alias added: GHSA-75j9-8g79-fp7r

References

Patch 1

Advisory 2

  • TI-2026-32536 libsixel: integer overflow in encoder CVSS 3.1HIGH 7.8
  • TI-2026-25469 libsixel: Use-after-free in load_with_gdkpixbuf() CVSS 3.1HIGH 7.8
  • TI-2026-32537 libsixel: integer overflow in parser CVSS 3.1HIGH 7.1
  • TI-2026-25466 libsixel: Integer Overflow in write_png_to_file() leads to Heap-based Buffer Overflow CVSS 3.1HIGH 7.1
  • TI-2026-25464 libsixel: Use-After-Free in load_gif() CVSS 3.1HIGH 7.0
  • TI-2026-25467 libsixel: Use-after-free in sixel_encoder_encode_bytes() CVSS 3.1HIGH 7.3
See all 47 →

Sources

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