Description
In Node.js, the `ReadFileUtf8` internal binding leaks memory due to a corrupted pointer in `uv_fs_s.file`: a UTF-16 path buffer is allocated but subsequently overwritten when the file descriptor is set. This results in an unrecoverable memory leak on every call. Repeated use can cause unbounded memory growth, leading to a denial of service. Impact: * This vulnerability affects APIs relying on `ReadFileUtf8` on Node.js release lines: v20 and v22.
Scores
CVSS v3
3.7
EPSS
0.0036
EPSS Percentile
57.9%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-401
Status
published
Products (19)
nodejs/node
10.0 - 10.*
nodejs/node
11.0 - 11.*
nodejs/node
12.0 - 12.*
nodejs/node
13.0 - 13.*
nodejs/node
14.0 - 14.*
nodejs/node
15.0 - 15.*
nodejs/node
16.0 - 16.*
nodejs/node
17.0 - 17.*
nodejs/node
18.0 - 18.*
nodejs/node
19.0 - 19.*
... and 9 more
Published
May 19, 2025
Tracked Since
Feb 18, 2026