CVE-2026-28512Pocket ID: OAuth redirect_uri validation bypass via userinfo/host confusion
Updated under an hour ago ()
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It affects pocket-id and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to your services. From 2.0.0 to before 2.4.0, a flaw in callback URL validation allowed crafted redirect_uri values containing URL userinfo (@) to bypass legitimate callback pattern checks. If an attacker can trick a user into opening a malicious authorization link, the authorization code may be redirected to an attacker-controlled host. This vulnerability is fixed in 2.4.0.
- CVSS
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
- Weakness (CWE)
- CWE-601
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Mar 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
pocket-id pocket-id pocket_id:pocket_id (from the name) | from 2.0.0, < 2.4.0 | CNA record |
pocket-id pocket_id pocket-id:pocket_id | from 2.0.0 before 2.4.0 | NVD |
References
- https://github.com/pocket-id/pocket-id/security/advisories/GHSA-9h33-g3ww-mqffx-refsource-confirm, mitigation, patch, vendor-advisory
- https://github.com/pocket-id/pocket-id/commit/3a339e33191c31b68bf57db907f800d9de5ffbc8x-refsource-misc, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.