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Fencer Vulns
high 7.5

CVE-2021-29156 in the critical feed json

ForgeRock OpenAM before 13.5.1 allows LDAP injection via the Webfinger protocol.

published 2021-03-25 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-15795

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
76.8%
EPSS 76.8% chance of exploitation in 30 days, percentile 99.5%
public exploits
1
Exploit-DB, plus a Nuclei check

Summary

ForgeRock OpenAM before 13.5.1 allows LDAP injection via the Webfinger protocol. For example, an unauthenticated attacker can perform character-by-character retrieval of password hashes, or retrieve a session token or a private key.

Patch / fix

  • forgerock openam 13.5.1

Timeline

  1. Published
  2. First public exploit (EDB-50480)

Exploit prediction

76.85% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-50480 OpenAM 13.0 - LDAP Injection webapps, 2021-11-03
  • Nuclei template LDAP Injection In OpenAM nuclei detection template
  • bugster.forgerock.org https://bugster.forgerock.org/jira/browse/OPENAM-10135 referenced PoC, tagged "exploit" by a source, unverified
  • portswigger.net https://portswigger.net/research/hidden-oauth-attack-vectors referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

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.