CVE-2026-24857
CRITICALbulk_extractor >= 1.4 - Heap-Based Buffer Overflow in RAR PPM LZ Decoding
Title source: llmDescription
`bulk_extractor` is a digital forensics exploitation tool. Starting in version 1.4, `bulk_extractor`’s embedded unrar code has a heap‑buffer‑overflow in the RAR PPM LZ decoding path. A crafted RAR inside a disk image causes an out‑of‑bounds write in `Unpack::CopyString`, leading to a crash under ASAN (and likely a crash or memory corruption in production builds). There's potential for using this for RCE. As of time of publication, no known patches are available.
References (1)
Core 1
Core References
Exploit, Vendor Advisory x_refsource_confirm
https://github.com/simsong/bulk_extractor/security/advisories/GHSA-rh8m-9xrx-q64q
Scores
CVSS v3
9.8
EPSS
0.0037
EPSS Percentile
28.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-787
CWE-122
Status
published
Products (1)
simsong/bulk_extractor
1.4
Published
Jan 28, 2026
Tracked Since
Feb 18, 2026