Advisory details:
gitlab / maven/org.bouncycastle/bcpkix-jdk15to18/CVE-2026-15055
| Advisory ID | gitlab/maven/org.bouncycastle/bcpkix-jdk15to18/CVE-2026-15055 |
| Aliases |
CVE-2026-15055
|
| Summary | PKCS#8 / PBES2 decryptors honour unbounded KDF cost from input Affects Bouncy Castle for Java before 1.85. PBES2 decryptor builders pass the scrypt cost parameters and PBKDF2 iteration count from an attacker-supplied EncryptedPrivateKeyInfo, PKCS#12 or CMS structure straight into key derivation, and the same pattern appears in the OpenSSL PKCS#8 builder, CMS password recipients and PKCS12PfxPdu MAC verification. Because derivation runs before any integrity check, a small input can force gigabytes of scrypt memory or up to 2^31 HMAC iterations, causing OOM or pinning a worker thread. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 0.0 |
| Risk | |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/org.bouncycastle/bcpkix-jdk15to18/CVE-2026-15055.yml |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/bcgit/bc-java/wiki/CVE-2026-15055 | ||
| 7ab4ee67a0135950001b29b41a96d8a9a5d3b68b | Other | https://github.com/bcgit/bc-java/commit/7ab4ee67a0135950001b29b41a96d8a9a5d3b68b |
| CVE-2026-15055 | https://nvd.nist.gov/vuln/detail/CVE-2026-15055 |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
There are no SSVC decisions available.