Perl threads have a working directory race condition where file operations may target unintended paths
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| perl | perl | unaffected |
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| Vendor | Product | Versions |
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| Perl | Perl | — |
Vendor Solution
Update perl to an unaffected version, or apply the patch provided in the references section.
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4538-1 | perl security update |
EUVD |
EUVD-2025-16506 | Perl threads have a working directory race condition where file operations may target unintended paths. If a directory handle is open at thread creation, the process-wide current working directory is temporarily changed in order to clone that handle for the new thread, which is visible from any third (or more) thread already running. This may lead to unintended operations such as loading code or accessing files from unexpected locations, which a local attacker may be able to exploit. The bug was introduced in commit 11a11ecf4bea72b17d250cfb43c897be1341861e and released in Perl version 5.13.6 |
Ubuntu USN |
USN-7678-1 | Perl vulnerability |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.499% probability within 30 days)
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| Weaknesses | CWE-689 |
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| Description | Perl threads have a working directory race condition where file operations may target unintended paths. If a directory handle is open at thread creation, the process-wide current working directory is temporarily changed in order to clone that handle for the new thread, which is visible from any third (or more) thread already running. This may lead to unintended operations such as loading code or accessing files from unexpected locations, which a local attacker may be able to exploit. The bug was introduced in commit 11a11ecf4bea72b17d250cfb43c897be1341861e and released in Perl version 5.13.6 | |
| Title | Perl threads have a working directory race condition where file operations may target unintended paths | |
| Weaknesses | CWE-362 CWE-426 |
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