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Path traversal in uTox lets Tox friends write arbitrary files

Priority LOW 36CWE-22Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

uTox through 0.18.1 contains a path traversal flaw (CWE-22) in file transfer handling. A Tox friend can write arbitrary files on a victim's system by sending absolute or ../ file names when the victim has auto-accept enabled. The attacker can overwrite shell startup files, and the CNA's description says this can lead to code execution.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

uTox through 0.18.1 contains a path traversal vulnerability that allows Tox friends to write arbitrary files by sending absolute or ../ file names to victims with auto-accept enabled. Attackers can overwrite shell startup files or plant crafted .ftinfo resume records that ft_find_resumeable() loads, abusing FILE pointers to write /proc/self/mem and execute code.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00586 48th 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
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
uToxuToxup to 0.18.1—No fix listedCNA
  • uTox VendoruTox Affected up to 0.18.1 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for uTox.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-20 Threatist record created from CVE-2026-113352
  2. 2026-10-20 Alias added: GHSA-pqrg-92p8-w72h
  3. 2026-10-20 CISA SSVC decision points changed
  4. 2026-10-20 Priority changed: MEDIUM → LOW
  5. 2026-11-06 Affected versions changed · Red Hat
  6. 2026-11-06 CVSS score added · Red Hat

References

Sources