SB2026032307 - Red Hat Enterprise Linux 8 update for python3

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Main Vulnerability Database SB2026032307

SB2026032307 - Red Hat Enterprise Linux 8 update for python3

Published: March 23, 2026

Security Bulletin ID SB2026032307
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) IMAP command injection (CVE-ID: CVE-2025-15366)

CWE-ID: CWE-77 - Command injection

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to execute arbitrary IMAP commands.

The vulnerability exists due to insufficient input validation. A remote attacker can pass specially crafted data to the application and execute arbitrary IMAP commands.


2) POP3 command injection (CVE-ID: CVE-2025-15367)

CWE-ID: CWE-77 - Command injection

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to execute arbitrary POP3 commands.

The vulnerability exists due to insufficient input validation. A remote attacker can pass specially crafted data to the application and execute arbitrary POP3 commands on the server.


3) CRLF injection (CVE-ID: CVE-2026-1299)

CWE-ID: CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to inject arbitrary header into email messages.

The vulnerability exists due to insufficient validation of attacker-supplied data in "BytesGenerator" class. A remote attacker can pass specially crafted data to the application containing CR-LF characters and perform a spoofing attack.


Remediation

Install update from vendor's website.

References