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Fencer Vulns
high 7.5

CVE-2018-11047 json

Cloud Foundry UAA accepts refresh token as access token on admin endpoints

published 2018-07-24 8 y ago modified 2026-06-17 4 mo ago also GHSA-r4v8-9hgx-vm6m , EUVD-2022-5092

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 64%
public exploits
0
none known

Summary

Cloud Foundry UAA, versions 4.19 prior to 4.19.2 and 4.12 prior to 4.12.4 and 4.10 prior to 4.10.2 and 4.7 prior to 4.7.6 and 4.5 prior to 4.5.7, incorrectly authorizes requests to admin endpoints by accepting a valid refresh token in lieu of an access token. Refresh tokens by design have a longer expiration time than access tokens, allowing the possessor of a refresh token to authenticate longer than expected. This affects the administrative endpoints of the UAA. i.e. /Users, /Groups, etc. However, if the user has been deleted or had groups removed, or the client was deleted, the refresh token will no longer be valid.

Patch / fix

  • maven org.cloudfoundry.identity:cloudfoundry-identity-server 4.5.7, 4.7.6, 4.10.2, 4.12.4, 4.19.2
  • Cloud Foundry Cloud Foundry UAA 4.5.7, 4.7.6, 4.10.2, 4.12.4, 4.19.2

Exploit prediction

1.07% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
maven org.cloudfoundry.identity:cloudfoundry-identity-server
<4.5.7
>=4.6.0, <4.7.6
>=4.8.0, <4.10.2
>=4.11.0, <4.12.4
>=4.13.0, <4.19.2
4.5.7
4.7.6
4.10.2
4.12.4
4.19.2

Affected products

  • Cloud Foundry Cloud Foundry UAA

Classification

Weakness

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.