PT-2026-32504 · Canonical · Pyro+2

Sif-0X01 · Published 2026-04-13 · Updated 2026-04-19 · CVE-2026-31048

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Pyro versions 3.x

Description An issue in the pickle protocol allows attackers to execute arbitrary code by supplying a crafted pickled string message.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

CVE-2026-31048

Affected Products

Pyro

Pyro4

Pyro5

References · 8

• https://cve.org/CVERecord?id=CVE-2026-31048 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31048 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31048 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31048 · Security Note
• https://github.com/irmen/Pyro3/blob/master/docs/9-security.html#L341-L346 · Note
• https://github.com/irmen/Pyro3/blob/master/Pyro/protocol.py#L672-L711 · Note
• https://github.com/Sif-0x01/security-advisories/security/advisories/GHSA-7625-w9h5-83rv · Note
• https://twitter.com/CVEnew/status/2045972426732024182 · Twitter Post