Arbitrary Code Injection Affecting Shibboleth/cpp-sp package, versions [3.0.0,3.2.1)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
1.29% (67th percentile)

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  • Snyk IDSNYK-UNMANAGED-SHIBBOLETHCPPSP-15202474
  • published4 Feb 2026
  • disclosed22 Mar 2021
  • creditUnknown

Introduced: 22 Mar 2021

CVE-2021-28963  (opens in a new tab)
CWE-74  (opens in a new tab)

How to fix?

Upgrade Shibboleth/cpp-sp to version 3.2.1 or higher.

Overview

Affected versions of this package are vulnerable to Arbitrary Code Injection. Shibboleth Service Provider before 3.2.1 allows content injection because template generation uses attacker-controlled parameters.

References

CVSS Base Scores

version 3.1