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TI-2026-22775 Aliases CVE-2026-28513GHSA-qh6q-598w-w6m2

Pocket ID: OIDC authorization code validation uses AND instead of OR, allowing cross-client token exchange

Priority HIGH 70CWE-863Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-863.

Summary

Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to your services. Prior to 2.4.0, the OIDC token endpoint rejects an authorization code only when both the client ID is wrong and the code is expired. This allows cross-client code exchange and expired code reuse. This vulnerability is fixed in 2.4.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00308 23rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed pocket-id (pocket-id): 2.4.0github.com/pocket-id/pocket-id/backend (Go): 0.0.0-20260307173642-b59e35cb59ae

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
pocket-idpocket-idbefore 2.4.02.4.0Patch availableCNA
—github.com/pocket-id/pocket-id/backend (Go)before 0.0.0-20260307173642-b59e35cb59ae0.0.0-20260307173642-b59e35cb59aePatch availableGHSA-qh6q-598w-w6m2
  • pocket-id Vendorpocket-id Affected before 2.4.0 Fixed in 2.4.0 Patch available CNA
  • github.com/pocket-id/pocket-id/backend (Go) Vendor— Affected before 0.0.0-20260307173642-b59e35cb59ae Fixed in 0.0.0-20260307173642-b59e35cb59ae Patch available GHSA-qh6q-598w-w6m2

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:pocket-id:pocket_id:*:*:*:*:*:*:*:*before 2.4.0Vulnerablepocket-id
  • cpe:2.3:a:pocket-id:pocket_id:*:*:*:*:*:*:*:* Versions before 2.4.0 Vulnerable ·pocket-id

Remediation

  • Fix · CNA pocket-id (pocket-id) Fixed in 2.4.0
  • Fix · GHSA-qh6q-598w-w6m2 github.com/pocket-id/pocket-id/backend (Go) Fixed in 0.0.0-20260307173642-b59e35cb59ae Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-28513
  2. 2026-10-03 Alias added: GHSA-qh6q-598w-w6m2

References

Exploit 1

Advisory 1

Other 1

  • TI-2026-32027 Pocket ID: OIDC refresh token flow bypasses authorization revocation, account disabling, and group restrictions CVSS 4.0HIGH 8.5
  • TI-2026-22774 Pocket ID: OAuth redirect_uri validation bypass via userinfo/host confusion CVSS 3.1HIGH 7.1

Sources

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