Skip to main content
CVE-2026-42245VulnerabilityPublished Updated

Bundesamt für Sicherheit in der Informationstechnik Amazon · Red Hat Enterprise Linux (ruby: net-imap): Mehrere Schwachstellen

Affects Bundesamt für Sicherheit in der Informationstechnik AmazonSource GCVE Database

0
Compare

Mentioned vulnerabilities

Authoritative record:CVE-2026-42245· Low 2.3

Not known to be exploited · CVSS 2.3 Low · fixed in 0.6.4 : update Bundesamt für Sicherheit in der Informationstechnik Amazon when convenient.

Data as of 9 Nov 2026, 14:48 UTC

CVSS 4.0 base score
2.3Low
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 0.6.4, 0.5.14, 0.4.24
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.

What to do

Upgrade net-imap to 0.6.4, 0.5.14 or 0.4.24; net-imap to 0.4.24.

Affected software

ProductAffectedFixed in
rubynet-imapAffected
  • >=0.6.0 <0.6.4
Fixed in
  • 0.6.4
rubynet-imapAffected
  • >=0.5.0 <0.5.14
Fixed in
  • 0.5.14
rubynet-imapAffected
  • <0.4.24
Fixed in
  • 0.4.24
RubyGemsnet-imappkg:gem/net-imapOther threatsAffected
  • <0.4.24
Fixed in
  • 0.4.24

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat has released an official security update for the ruby:4.0 module in Red Hat Enterprise Linux 9 that addresses these vulnerabilities. Users should apply the update as described in the Red Hat advisory RHSA-2026:33577 and the referenced article https://access.redhat.com/articles/11258 to remediate these issues.

Description

Multiple security vulnerabilities have been identified in the ruby:net-imap module used in Red Hat Enterprise Linux 9. These include a denial of service via crafted IMAP responses, IMAP command injection via symbol arguments, and information disclosure through a man-in-the-middle attack bypassing TLS. Red Hat has released an important security update for the ruby:4.0 module addressing these issues.

References

Community reviews

Loading reviews…