PT-2026-132347
CVE-2026-118673
·
Published
2026-10-29
·
Updated
2026-10-29
Description by
CVSS 4.0
4.1
MediumMetricsAV:L/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Name of the Vulnerable Software and Affected Versions
KeePassXC versions 2.3.0 through 2.7.9
Description
Browser integration encrypts authorized responses in src/browser/BrowserMessageBuilder.cpp using a fixed 1 MiB output vector. Because Botan::Sodium::crypto box easy() writes the plaintext length plus crypto box MACBYTES, a browser-protocol client with access to the per-user IPC endpoint and a valid database association can trigger a sequential out-of-bounds write by causing an unlocked database to generate and encrypt a sufficiently large authorized response.
Recommendations
Update to version 2.8.0.
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