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Medium

Improper Input Validation in Bouncy Castle

  • Disclosed: 14.05.2022
  • Updated: 11.10.2026 12:21

The TLS implementation in the Bouncy Castle Java library before 1.48 and C# library before 1.8 does not properly consider timing side-channel attacks on a noncompliant MAC check operation during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, a related issue to CVE-2013-0169.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.bouncycastle:bcprov-jdk15on < 1.48 1.48

References

CVSS score -
Weakness (CWE)
CWE-20
Platform
Java / Kotlin (Maven)
Package
org.bouncycastle:bcprov-jdk15on
Disclosed
14.05.2022
Updated
11.10.2026 12:21

Sources and licenses

OSV / GitHub Advisory Database - GHSA-8353-fgcr-xfhx - CC BY 4.0

Vulnerability history: org.bouncycastle:bcprov-jdk15on

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (25) in the archive
Total entries
25
First → latest
10.2018 04.2026
Without a fix
3
Exploited in attacks
0

Severity breakdown

  • Critical 2
  • High 8
  • Medium 14
  • Low 1

Disclosures per year

Severity:
  1. Bouncy Castle for Java GOST 28147 CTR mode reuses keystream after 255 blocks
    Critical · 7.5 CVE-2025-14813 <= 1.7.0 no fix
  2. Improper Input Validation in Bouncy Castle this entry
    Medium CVE-2013-1624 < 1.48 1.48
  3. Logic error in Legion of the Bouncy Castle BC Java
    High · 8.1 CVE-2020-28052 >= 1.65, < 1.67 1.67
  4. In Bouncy Castle JCE Provider the DHIES implementation allowed the use of ECB mode
    High · 7.4 CVE-2016-1000344 < 1.56 1.56
  5. In Bouncy Castle JCE Provider the ECIES implementation allowed the use of ECB mode
    High · 7.4 CVE-2016-1000352 < 1.56 1.56
  6. In Bouncy Castle JCE Provider the DSA key pair generator generates a weak private key if used with default values
    High · 7.5 CVE-2016-1000343 < 1.56 1.56
  7. In Bouncy Castle JCE Provider ECDSA does not fully validate ASN.1 encoding of signature on verification
    High · 7.5 CVE-2016-1000342 < 1.56 1.56
  8. The Bouncy Castle JCE Provider carry a propagation bug
    High · 7.5 CVE-2016-1000340 >= 1.51, < 1.56 1.56
  9. In Bouncy Castle JCE Provider it is possible to inject extra elements in the sequence making up the signature and still have it validate
    High · 7.5 CVE-2016-1000338 >= 1.38, < 1.56 1.56
  10. Deserialization of Untrusted Data in Bouncy castle
    Critical · 9.8 CVE-2018-1000613 >= 1.57, < 1.60 1.60
  11. Bouncy Castle has a flaw in the Low-level interface to RSA key pair generator
    High · 7.5 CVE-2018-1000180 < 1.60 1.60

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