CVE-2026-66057
Prior to 15.116.0 and 16.29.0, the OAuth login flow uses an unsanitized client-controlled state parameter to select post-authentication navigation, allowing a crafted state value to redirect a user to an attacker-chosen location.
Does this matter?
Lower severity and a low EPSS score (0.42%). Track it; it rarely justifies an emergency change on its own.
Description
Frappe is a full-stack web application framework. Prior to 15.116.0 and 16.29.0, the OAuth login flow uses an unsanitized client-controlled state parameter to select post-authentication navigation, allowing a crafted state value to redirect a user to an attacker-chosen location. This issue is fixed in versions 15.116.0 and 16.29.0.
- CVSS 4.0
- 5.1 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.42% probability · 36th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-601
- Source
- security-advisories@github.com
EPSS moved from 0.4% on 14 October 2026 to 0.4% on 26 October 2026.
References
- https://github.com/frappe/frappe/commit/12568e2d54c4abba70bc0261387053fa28f90988
- https://github.com/frappe/frappe/commit/1e0a3b941231d74a71ff1a43eee2e9f63c88712d
- https://github.com/frappe/frappe/commit/6ed8acd869199feb3a2598887d471448297edf07
- https://github.com/frappe/frappe/pull/40962
- https://github.com/frappe/frappe/releases/tag/v15.116.0
- https://github.com/frappe/frappe/releases/tag/v16.29.0
- https://github.com/frappe/frappe/security/advisories/GHSA-78c5-55xg-jm7m
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.