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TI-2019-08593 Aliases CVE-2019-11503GHSA-w39p-qmcm-pxpm

snap-confine as included in snapd before 2.39 did not guard against symlink races when…

Priority LOW 37CWE-59Published · Updated

Key facts

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

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

snap-confine as included in snapd before 2.39 did not guard against symlink races when performing the chdir() to the current working directory of the calling user, aka a "cwd restore permission bypass."

Why it matters now

EPSS 0.02418 84th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

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:canonical:snapd:*:*:*:*:*:*:*:*before 2.39VulnerableCanonical
  • cpe:2.3:a:canonical:snapd:*:*:*:*:*:*:*:* Versions before 2.39 Vulnerable ·Canonical

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-2019-11503
  2. 2026-10-03 Alias added: GHSA-w39p-qmcm-pxpm

References

Exploit 1

Advisory 4

  • TI-2023-01437 Injection in Canonical snapd CVSS 3.1CRITICAL 10.0
  • TI-2019-05192 Local privilege escalation via snapd socket CVSS 3.1CRITICAL 9.8
  • TI-2024-01603 snapd allows $HOME/bin symlink CVSS 3.1HIGH 8.2
  • TI-2024-04773 Improper input validation in Canonical snapd CVSS 3.1HIGH 8.1
  • TI-2020-16634 Improper privilege management in Canonical snapd CVSS 3.1CRITICAL 9.3
  • TI-2019-05191 Snapd seccomp filter TIOCSTI ioctl bypass CVSS 3.1HIGH 7.5
See all 15 →

Sources

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