CVE-2026-13082

GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets

5.3 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: Low
Availability: None

Exploit likelihood

0.30%Up 0.1 points since Jul 18, 2026

What each source reports

CVE List Score used 5.3

GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets

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.

Record: CVE-2026-13082
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-338, CWE-804
Updated: 2026-11-02

EUVDEUVD-2026-45169 5.3

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.

Record: EUVD-2026-45169
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-p496-rgmp-v9mg 5.3

GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets. The random method...

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.

Record: GHSA-p496-rgmp-v9mg
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-338
Updated: 2026-11-02

NVD 5.3

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.

Record: CVE-2026-13082
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-338, CWE-804
Updated: 2026-11-02

OSV 5.3

GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets

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.

Record: CVE-2026-13082
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-338, CWE-804
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-13082 5.3

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.

Record: DEBIAN-CVE-2026-13082
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-13082 5.3

Record: UBUNTU-CVE-2026-13082
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Updated: 2026-11-02

Affected products

burak gd::securityimage

Affected packages

Affected packages
Package	Affected	Fixed
`libgd-securityimage-perl` Debian:12	All versions, plus listed versions 1.75-21.75-3	None known
`libgd-securityimage-perl` Debian:13	All versions, plus listed versions 1.75-3	None known
`libgd-securityimage-perl` Ubuntu:16.04:LTS	All versions, plus listed versions 1.73-2	None known
`libgd-securityimage-perl` Ubuntu:18.04:LTS	All versions, plus listed versions 1.73-2	None known
`libgd-securityimage-perl` Ubuntu:20.04:LTS	All versions, plus listed versions 1.75-1	None known
`libgd-securityimage-perl` Ubuntu:22.04:LTS	All versions, plus listed versions 1.75-1	None known
`libgd-securityimage-perl` Ubuntu:24.04:LTS	All versions, plus listed versions 1.75-2	None known
`libgd-securityimage-perl` Ubuntu:26.10	All versions, plus listed versions 1.75-3	None known
`libgd-securityimage-perl` Ubuntu:26.04:LTS	All versions, plus listed versions 1.75-3	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-13082 is a medium vulnerability (CVSS 5.3) in Burak Gd::securityimage, published July 17, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 23rd percentile. No source names a fixed version.

References

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