CVE-2026-28513: pocket-id pocket_id Incorrect Authorization
Vulnerability summary
CVE-2026-28513 is a high (CVSS 8.5) Incorrect Authorization vulnerability in pocket-id pocket_id. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.7% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 09-03-2026PublishedVulnerability first disclosed.
- 10-03-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · GoEcosystem advisory · calculated8.5HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
- NVDNIST7.1HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:NDiffers
EPSS trend
Probability
0.31%
Chance of exploitation in the next 30 days
Percentile
23%
Versus all other CVEs
30-day change
+0.03 pp
From 0.28% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundPocket Id
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Github.com/pocket-id/pocket-id1 product
- backend< 0.0.0-20260307173642-b59e35cb59ae
2 vendors · 3 products
References
3 links- github.com/pocket-id/pocket-id/security/advisories/GHSA-qh6q-598w-w6m2X Refsource CONFIRMWEBAdvisoryExploitVendor Advisory