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VulnerabilityPublished

CVE-2026-107937: Wso2am · In Apache CXF, the parser for multipart/MTOM attachment part headers did not fully enforce

Affects wso2amSource GCVE Database

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Authoritative record:CVE-2026-107937· High 7.5

Not known to be exploited · CVSS 7.5 High : upgrade to 4.7.0-r5 soon.

Data as of 11 Nov 2026, 03:37 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 4.7.0-r5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Oct 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 10 Nov 2026.

What to do

Upgrade wso2am to 4.7.0-r5.

Affected software

ProductAffectedFixed in
CleanStartwso2ampkg:apk/cleanstart/wso2amOther threatsAffected
  • <4.7.0-r5
Fixed in
  • 4.7.0-r5

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

Description

Security vulnerability affects the wso2am package. In Apache CXF, the parser for multipart/MTOM attachment part headers did not fully enforce the configured attachment-max-header-size (default 300 characters) and attachment-headers-max-count (default 500) limits.

References

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