IBM WebSphere eXtreme Scale is affected by server side request forgery when ORB is used as Transport Protocol (IBM WebSphere Extreme Scale)

CVE-2026-13773
MEDIUM 6.0

At a glance

Source
NVD
EPSS
EPSS 6.10 % Β· percentile 93 ()
State
PUBLISHED
Published
Updated
Assigner
ibm
NVD status
Analyzed

Description

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 Approximately 50 generated CORBA stub classes in WebSphere eXtreme Scale's ogclient.jar call ORB.string_to_object() on an attacker-controlled IOR string during Java deserialization, turning any unfiltered ObjectInputStream sink in WAS into outbound IIOP SSRF to an attacker-chosen host; when chained with the IBM ORB's getUserException class-instantiation flaw (WAS-26), this SSRF escalates to remote code execution on the calling JVM.

Weaknesses (CWE)

  • CWE-918 β€” Server-Side Request Forgery

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 6.0CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:Libm
CVSS 3.1MEDIUM 6.0CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:LNVD Β· psirt@us.ibm.com (Secondary)
CVSS 3.1CRITICAL 10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HNVD Β· nvd@nist.gov (Primary)

European references

Affected configurations (NVD CPE)

Affected products

ProductVersions
IBM Β· WebSphere Extreme Scaleaffected 8.6.1.0 ≀ 8.6.1.6

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST β€” attribution requested
ENISA EUVDENISA β€” reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain β€” this product uses data from the NVD API but is not endorsed or certified by the NVD