CVE-2026-8704

Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified

6.5 Medium

Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified.

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: Low
Integrity: Low
Availability: None

Exploit likelihood

0.32%Up 0.3 points since May 16, 2026

What each source reports

CVE List Score used 6.5

Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified

Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified.

Record: CVE-2026-8704
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-552
Updated: 2026-11-02

EUVDEUVD-2026-30668 6.5

Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified.

Record: EUVD-2026-30668
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-5cq6-9f97-wjwx No score

Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified.

Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified.

Record: GHSA-5cq6-9f97-wjwx
Weakness: CWE-552
Updated: 2026-11-02

NVD 6.5

Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified.

Record: CVE-2026-8704
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-552
Updated: 2026-11-02

OSV 6.5

Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified

Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified.

Record: CVE-2026-8704
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-552
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-8704 6.5

Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified.

Record: DEBIAN-CVE-2026-8704
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-8704 6.5

Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified.

Record: UBUNTU-CVE-2026-8704
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated: 2026-11-02

Affected products

timlegge crypt::dsa

Affected packages

Affected packages
Package	Affected	Fixed
`libcrypt-dsa-perl` Debian:12	All versions, plus listed versions 1.17-51.19-11.20-11.21-1	None known
`libcrypt-dsa-perl` Debian:13	All versions, plus listed versions 1.19-11.20-11.21-1	None known
`libcrypt-dsa-perl` Ubuntu:16.04:LTS	All versions, plus listed versions 1.17-31.17-4	None known
`libcrypt-dsa-perl` Ubuntu:18.04:LTS	All versions, plus listed versions 1.17-4	None known
`libcrypt-dsa-perl` Ubuntu:20.04:LTS	All versions, plus listed versions 1.17-4	None known
`libcrypt-dsa-perl` Ubuntu:22.04:LTS	All versions, plus listed versions 1.17-4	None known
`libcrypt-dsa-perl` Ubuntu:24.04:LTS	All versions, plus listed versions 1.17-5	None known
`libcrypt-dsa-perl` Ubuntu:25.10	All versions, plus listed versions 1.19-1	None known
`libcrypt-dsa-perl` Ubuntu:26.04:LTS	All versions, plus listed versions 1.19-1	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-2026-8704 is a medium vulnerability (CVSS 6.5) in Timlegge Crypt::dsa, published May 15, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.32%, the 24th percentile. No source names a fixed version.

References

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