Out-of-bounds Read Affecting cyrus-imapd-utils package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.22% (12th percentile)

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  • Snyk IDSNYK-RHEL7-CYRUSIMAPDUTILS-19759307
  • published13 Sept 2026
  • disclosed10 Sept 2026

Introduced: 10 Sep 2026

CVE-2026-61908  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 cyrus-imapd-utils.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cyrus-imapd-utils package and not the cyrus-imapd-utils package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

An issue was discovered in Cyrus IMAP before 3.12.4. A JMAP email-header blob ID can reference an out-of-bounds index. An authenticated user could attempt to download a crafted JMAP blob ID of the form H<emailid>-<index>, which could read past the end of the internal blob_headers array during download, exposing adjacent heap memory.

CVSS Base Scores

version 3.1