PoC Index85,079 CVEs with PoCs

CVE-2026-86776

KeePass 2.35 through 2.61.1 Memory Exhaustion via KDBX Header Field Size

MEDIUM 4.6EPSS 0.2%

KeePass versions 2.35 through 2.61.1 fail to validate KDBX header field sizes before memory allocation in the ReadHeaderField function. Attackers can craft a malicious KDBX file declaring excessive header field lengths to trigger allocation of gigabytes of memory, causing the application to consume resources and terminate.

Affected
KeePass
CVSS v4.0 VULNCHECK
4.6 MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/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
CVSS v3.1 VULNCHECK
3.3 LOWCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
EPSS
0.17% chance of exploitation in the next 30 days, 6th percentile
Published
2026-09-09
Updated
2026-09-10

Proof-of-concept exploits (1)

References