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CVE-2026-42245VulnerabilityPublished Updated

Bundesamt für Sicherheit in der Informationstechnik Debian · HCL BigFix Compliance (Ruby): Mehrere Schwachstellen

Affects Bundesamt für Sicherheit in der Informationstechnik DebianSource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-42245· Low 2.3

Not known to be exploited · CVSS 2.3 Low · fixed in Debian package updates : update Debian net-imap 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 provided official security updates that fix these vulnerabilities. Users of affected Red Hat Enterprise Linux 9.4 and related distributions should apply the ruby package updates as described in the Red Hat advisory RHSA-2026:33630. No additional mitigation steps are indicated beyond applying the official patches.

Description

Multiple vulnerabilities have been identified in the Ruby Net::IMAP library affecting Red Hat Enterprise Linux 9.4 and related distributions. These include an IMAP command injection via symbol arguments and information disclosure through a man-in-the-middle attack bypassing TLS. The issues are addressed in updated Ruby packages provided by Red Hat.

References

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