CVE-2026-53981

high

Description

Cap-go prior to 12.128.2 contains an account takeover vulnerability in its email change mechanism that allows an attacker with temporary authenticated session access to change the registered email address without re-authentication such as password or MFA verification. Attackers can redirect verification to an attacker-controlled email address and subsequently perform a password reset to permanently take over the victim's account.

References

https://www.vulncheck.com/advisories/cap-go-account-takeover-via-unauthenticated-email-change-mechanism

https://github.com/Cap-go/capgo/security/advisories/GHSA-w56g-jv78-hf79

https://github.com/Cap-go/capgo/commit/6685e5f11adef257bf3d085e481f4d8ebcec602e

Details

Source: Mitre, NVD

Published: 2026-06-12

Updated: 2026-06-15

Risk Information

CVSS v2

Base Score: 8

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:P/A:P

Severity: High

CVSS v3

Base Score: 7.6

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

Severity: High

CVSS v4

Base Score: 7.2

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00065