SB2026100819 - IBM PowerVC update for jackson-databind

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2026100819

SB2026100819 - IBM PowerVC update for jackson-databind

Published: October 8, 2026

Security Bulletin ID SB2026100819
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2026-77310)

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to server-side request forgery (SSRF) in InetAddress deserialization in FromStringDeserializer.Std._deserialize() when parsing attacker-controlled input into an InetAddress-typed target. A remote attacker can supply a crafted hostname for deserialization to disclose sensitive information.

The issue causes eager forward DNS resolution during deserialization, enabling DNS-based out-of-band interaction and blind enumeration of whether internal hostnames resolve before application-level validation.


Remediation

Install update from vendor's website.

References