The random method creates the challenge text used for the CAPTCHA by sampling characters from an array using Perl's built-in rand function, and generates a (by default) six-character string.
The built-in rand function is unsuitable for security applications because it is predictable and reversible.
Analysis
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| BURAK | GD::SecurityImage | unaffected |
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Vendor Workaround
GD::SecurityImage has not been updated since 2018, the module is flagged as ADOPTME on CPAN, and the git repository is archived as read-only, which prevents issues and pull requests from being created. Users are advised to find an alternative solution. For users who are unable to migrate to an alternative, install Crypt::URandom::MonkeyPatch (which will override the built-in rand with a wrapper around Crypt::URandom) and apply the patch.
Tracking
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Fri, 17 Jul 2026 13:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets. The random method creates the challenge text used for the CAPTCHA by sampling characters from an array using Perl's built-in rand function, and generates a (by default) six-character string. The built-in rand function is unsuitable for security applications because it is predictable and reversible. | |
| Title | GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets | |
| Weaknesses | CWE-338 CWE-804 |
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: CPANSec
Published:
Updated: 2026-07-17T12:54:07.177Z
Reserved: 2026-06-23T18:17:08.243Z
Link: CVE-2026-13082
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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