CVE-2025-6498

A vulnerability classified as problematic has been found in HTACG tidy-html5 5.8.0. Affected is the function defaultAlloc of the file src/alloc.c. The manipulation leads to memory leak. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
3.3 LOW
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
VulDBCNA
3.3 LOW
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
CISA-ADPADP
---
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Base Score
CVSS 3.x
EPSS Score
Percentile: 11%
VendorProductVersion
htacgtidy
5.8.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
tidy-html5
bookworm
postponed
bullseye
postponed
trixie
postponed
forky
vulnerable
sid
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
tidy-html5
plucky
deferred
oracular
ignored
noble
deferred
jammy
deferred
focal
deferred
bionic
deferred
Common Weakness Enumeration
References
https://github.com/htacg/tidy-html5/issues/1152
https://github.com/user-attachments/files/20438303/tidy-html5_crash_3.txt
https://vuldb.com/?ctiid.313614
https://vuldb.com/?id.313614
https://vuldb.com/?submit.601009
https://github.com/htacg/tidy-html5/issues/1152