CVE-2026-100310
published 2026-09-25CVE-2026-100310: GNU libextractor before 1.16 loads plugins from an untrusted search path specified by the LIBEXTRACTOR_PREFIX environment variable without proper privilege…
PriorityP336high7CVSS 3.1
AVLACHPRLUINSUCHIHAH
EPSS
0.14%
2.8th percentile
GNU libextractor before 1.16 loads plugins from an untrusted search path specified by the LIBEXTRACTOR_PREFIX environment variable without proper privilege checks. A local attacker can exploit this by setting LIBEXTRACTOR_PREFIX to a directory containing a malicious plugin that executes arbitrary code with elevated privileges when loaded by a setuid or setgid program.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| gnu | libextractor | < 1.16 | 1.16 |
CVSS provenance
nvdv3.17.0HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv4.07.3HIGHCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/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
vendor_redhat7.0HIGH
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VulDB
GNU libextractor up to 1.15 Plugin Loading LIBEXTRACTOR_PREFIX untrusted search path
vuldb·2026-09-25·CVSS 7.0
CVE-2026-100310 [HIGH] GNU libextractor up to 1.15 Plugin Loading LIBEXTRACTOR_PREFIX untrusted search path
A vulnerability marked as critical has been reported in GNU libextractor up to 1.15. The affected element is an unknown function of the component Plugin Loading. This manipulation of the argument LIBEXTRACTOR_PREFIX causes untrusted search path.
The identification of this vulnerability is CVE-2026-100310. The attack can only be executed locally. There is no exploit available.
It is suggested to upgrade the affected component.
GHSA
GNU libextractor before 1.16 loads plugins from an untrusted search path specified by the LIBEXTRACTOR_PREFIX environment variable without proper privilege checks.
ghsa_unreviewed·2026-09-25
CVE-2026-100310 [HIGH] CWE-426 GNU libextractor before 1.16 loads plugins from an untrusted search path specified by the LIBEXTRACTOR_PREFIX environment variable without proper privilege checks.
GNU libextractor before 1.16 loads plugins from an untrusted search path specified by the LIBEXTRACTOR_PREFIX environment variable without proper privilege checks. A local attacker can exploit this by setting LIBEXTRACTOR_PREFIX to a directory containing a malicious plugin that executes arbitrary code with elevated privileges when loaded by a setuid or setgid program.
Red Hat
libextractor: libextractor: Privilege escalation via LIBEXTRACTOR_PREFIX environment variable
vendor_redhat·2026-09-25·CVSS 7.0
CVE-2026-100310 [HIGH] CWE-426 libextractor: libextractor: Privilege escalation via LIBEXTRACTOR_PREFIX environment variable
libextractor: libextractor: Privilege escalation via LIBEXTRACTOR_PREFIX environment variable
GNU libextractor before 1.16 loads plugins from an untrusted search path specified by the LIBEXTRACTOR_PREFIX environment variable without proper privilege checks. A local attacker can exploit this by setting LIBEXTRACTOR_PREFIX to a directory containing a malicious plugin that executes arbitrary code with elevated privileges when loaded by a setuid or setgid program.
A flaw was found in libextractor. When executed by privileged applications, such as those running with elevated set user ID (setuid) permissions, the library loads plugins from an untrusted search path defined by the LIBEXTRACTOR_PREFIX environment variable without verifying caller privileges. A local attacker can exploit this issu
No detection rules found.
No public exploits indexed.
https://ftp.gnu.org/gnu/libextractor/https://git.gnunet.org/gnunet/libextractor/commit/6edfa653c048800e24a17f7e8cc2bb42659b8d01.htmlhttps://github.com/Haitam-lazaar/libextractor-priveschttps://www.gnu.org/software/libextractor/https://www.vulncheck.com/advisories/gnu-libextractor-before-1.16-privilege-escalation-via-libextractor-prefixhttp://www.openwall.com/lists/oss-security/2026/09/25/25
2026-09-25
Published