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Fencer Vulns
high 8.6

CVE-2026-40999 json

Spring WS SSRF via unvalidated WS-Addressing reply destinations

published 2026-06-11 4 mo ago modified 2026-09-04 2 mo ago also GHSA-whpp-xv3h-rwxf , EUVD-2026-36209

cvss
8.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

When WS-Addressing is used with non-anonymous ReplyTo or FaultTo addresses, Spring WS may initiate outbound connections through configured WebServiceMessageSender instances to destinations taken directly from request headers without verifying that those destinations are safe to connect to.

Affected versions: Spring Web Services 5.0.0 through 5.0.1; 4.1.0 through 4.1.3; 4.0.0 through 4.0.18; 3.1.0 through 3.1.8.

Patch / fix

  • maven org.springframework.ws:spring-ws-core 4.1.4, 5.0.2
  • Spring Spring Web Services 3.1.9, 4.0.19, 4.1.3.1, 5.0.1.1

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
4 mo ago

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
GitHub 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
maven org.springframework.ws:spring-ws-core
>=5.0.0, <5.0.2
>=4.1.0, <4.1.4
>=4.0.0, <=4.0.18
>=3.1.0, <=3.1.8
5.0.2
4.1.4

Affected products

  • Spring Spring Web Services

Classification

Weakness
  • CWE-918 Server-Side Request Forgery

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.