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TI-2026-73872 Aliases CVE-2026-110452GHSA-ggvw-xgw8-9cc9

Incorrect store ownership in Nix multi-user installer

Priority LOW 18CWE-708Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Nix versions from 0 before 2.28.8, from 2.29.0 before 2.30.6, from 2.31.0 before 2.31.6, from 2.32.0 before 2.34.9 and from 2.35.0 before 2.35.3 are affected. The multi-user installer sets ownership of store contents to the user who ran the installer instead of root (CWE-708). A local user with no privileges can modify store contents, with limited integrity impact.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

The multi-user installer in Nix before 2.35.3 sets the ownership of store contents to the user (who invoked the installer) even though it should be root ownership.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00131 2nd percentileScored 2026-11-07
Fix Fixed Nix (NixOS): 2.28.8, 2.30.6, 2.31.6 +2

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
NixOSNixbefore 2.28.8; 2.29.0 to before 2.30.6; 2.31.0 to before 2.31.6; 2.32.0 to before 2.34.9; 2.35.0 to before 2.35.32.28.8, 2.30.6, 2.31.6, 2.34.9, 2.35.3Patch availableCNA
  • Nix VendorNixOS Affected before 2.28.8; 2.29.0 to before 2.30.6; 2.31.0 to before 2.31.6; 2.32.0 to before 2.34.9; 2.35.0 to before 2.35.3 Fixed in 2.28.8, 2.30.6, 2.31.6, 2.34.9, 2.35.3 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:nixos:nix:*:*:*:*:*:*:*:*——NixOS
  • cpe:2.3:a:nixos:nix:*:*:*:*:*:*:*:* Versions — — ·NixOS

Remediation

The fixed versions for Nix are 2.28.8, 2.30.6, 2.31.6, 2.34.9 and 2.35.3, one for each affected branch.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Nix (NixOS) Fixed in 2.28.8, 2.30.6, 2.31.6, 2.34.9, 2.35.3

Fixed in the same release

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

  • Release ·

    NixOS Nix 2.28.8, 2.30.6 and 3 more versions

    5 records Highest priority Priority LOW 5 LOW

    Other records, highest priority first

    • TI-2026-73870 Nix and Lix repair operation lets local users escalate privilegesPriority LOW 36
    • TI-2026-73869 Integer overflow in Nix and Lix list allocation enables out-of-bounds writePriority LOW 32
    • TI-2026-73873 Incorrect authorization in Nix lets build users reach daemon clientsPriority LOW 19
    Show all 5 records →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-14 Threatist record created from CVE-2026-110452
  2. 2026-10-14 Alias added: GHSA-ggvw-xgw8-9cc9
  3. 2026-10-15 Affected versions changed · Red Hat
  4. 2026-10-15 CVSS score added · Red Hat
  5. 2026-10-15 CISA SSVC decision points changed

References

Other 1

  • TI-2026-23989 crypto: algif_aead - Revert to operating out-of-place KEVCVSS 3.1HIGH 7.8
  • TI-2024-11208 Rsync: heap buffer overflow in rsync due to improper checksum length handling CVSS 3.1CRITICAL 9.8
  • TI-2026-19201 Tandoor Recipes module allows SQLite database to be externally accessible with the default settings CVSS 4.0HIGH 8.7
  • TI-2024-11209 Rsync: info leak via uninitialized stack contents CVSS 3.1HIGH 7.5
  • TI-2024-11212 Rsync: --safe-links option bypass leads to path traversal CVSS 3.1HIGH 7.5
  • TI-2024-11211 Rsync: path traversal vulnerability in rsync CVSS 3.1HIGH 7.5
See all 40 →

Sources

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