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TI-2026-79456 Aliases CVE-2026-115371GHSA-6w4g-5qrv-grfx

Improper authorization in LXC Incus exposes storage bucket credentials

Priority LOW 31CWE-522Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
High · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-522.

Summary

Incus 6.0.3 before 6.0.7, 6.6.0 before 7.0.2, and 7.1.0 before 7.5.0 contains an improper authorization flaw that lets restricted TLS clients read storage bucket keys in the default project. An attacker who queries the bucket keys endpoints obtains S3 access and secret keys, which they can use to read, modify or delete objects in those buckets. The flaw is tracked as CWE-522.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

Incus 6.0.3 before 6.0.7, 6.6.0 before 7.0.2, and 7.1.0 before 7.5.0 contains an improper authorization vulnerability that allows restricted TLS clients to read storage bucket keys in the default project. Attackers can query the bucket keys endpoints to obtain S3 access and secret keys, then read, modify or delete objects in those buckets.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00219 12th percentileScored 2026-11-07
Fix Fixed incus (lxc): 6.0.7, 7.0.2, 7.5.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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
lxcincus6.0.3 to before 6.0.7; 6.6.0 to before 7.0.2; 7.1.0 to before 7.5.06.0.7, 7.0.2, 7.5.0Patch availableCNA
  • incus Vendorlxc Affected 6.0.3 to before 6.0.7; 6.6.0 to before 7.0.2; 7.1.0 to before 7.5.0 Fixed in 6.0.7, 7.0.2, 7.5.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:linuxcontainers:incus:*:*:*:*:*:*:*:*——lxc
  • cpe:2.3:a:linuxcontainers:incus:*:*:*:*:*:*:*:* Versions — — ·lxc

Remediation

Upgrade Incus to version 6.0.7, 7.0.2 or 7.5.0, depending on the release branch in use.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

  • Fix · CNA incus (lxc) Fixed in 6.0.7, 7.0.2, 7.5.0

Fixed in the same release

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

  • Release ·

    lxc incus 6.0.7, 7.0.2, 7.5.0

    5 records Highest priority Priority MEDIUM 2 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-79458 Missing authorization in Incus exposes operations across projectsPriority MEDIUM 64
    • TI-2026-79462 Arbitrary file write via symlink in Incus migration streamPriority MEDIUM 43
    • TI-2026-79463 Arbitrary file write in Incus via recursive file pullPriority LOW 30
    Show all 5 records →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-22 Threatist record created from CVE-2026-115371
  2. 2026-10-22 Alias added: GHSA-6w4g-5qrv-grfx
  3. 2026-10-23 Priority changed: MEDIUM → LOW
  4. 2026-11-03 Affected versions changed · Red Hat
  5. 2026-11-03 CVSS score added · Red Hat
  6. 2026-11-05 CISA SSVC decision points changed

References

Advisory 1

  • TI-2019-04061 runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows… CVSS 3.1HIGH 8.6
  • TI-2026-45063 Incus vulnerable to root RCE via image backup.yaml symlink CVSS 3.1CRITICAL 9.9
  • TI-2026-44978 Incus: Cross-project instance copy bypasses target project restrictions via TOCTOU in config merge CVSS 3.1CRITICAL 9.9
  • TI-2026-36039 Incus has an arbitrary file write on its client due to trusted image hash CVSS 3.1CRITICAL 9.9
  • TI-2026-36024 Incus has an arbitrary file write via path traversal in S3 multipart upload CVSS 3.1CRITICAL 9.9
  • TI-2026-36022 Incus has a restricted project bypass leading to arbitrary command execution CVSS 3.1CRITICAL 9.9
See all 63 →

Sources

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