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TI-2026-42402 Aliases CVE-2026-59262GHSA-m4gp-5xh5-xhq4

AFFiNE - Unauthorized Document Edit History Access via GraphQL histories Field

Priority MEDIUM 64CWE-862Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

AFFiNE's histories GraphQL field fails to validate Doc.Read permission before exposing document edit history, allowing authenticated workspace members to retrieve restricted content timelines. Attackers can supply arbitrary document GUIDs to access full edit histories including user names, emails, and timestamps of private pages they lack access to.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00415 36th percentileScored 2026-11-07
Fix Fixed monorepo (affine): 0.26.3

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
affinemonorepobefore 0.26.3; up to 1f0bcd00.26.3Patch availableCNA
  • monorepo Vendoraffine Affected before 0.26.3; up to 1f0bcd0 Fixed in 0.26.3 Patch available CNA

Remediation

  • Fix · CNA monorepo (affine) Fixed in 0.26.3

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 3 products
  • Red Hat AI Inference Server
  • Red Hat Enterprise Linux AI (RHEL AI) 3
  • Red Hat OpenShift AI (RHOAI)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-59262
  2. 2026-10-03 Alias added: GHSA-m4gp-5xh5-xhq4

References

Patch 1

Other 2

  • TI-2026-17555 AFFiNE: One-click Remote Code Execution through Custom URL Handling CVSS 3.1HIGH 8.8
  • TI-2026-20588 AFFiNE: Open Redirect via Regex Bypass in redirect-proxy CVSS 4.0MEDIUM 6.9

Sources

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