CVE-2026-59648: CWE-770 Allocation of Resources Without Limits or Throttling in Legion of the Bouncy Castle Inc. BC-JAVA
CVE-2026-59648 is a medium severity vulnerability in Bouncy Castle for Java (BC-JAVA) where the OpenPGP Argon2 S2K implementation honors attacker-chosen memory and iteration parameters. This affects versions before 1.85, including LTS versions before 2.73.12 and specific FIPS series versions. The issue relates to allocation of resources without limits or throttling, potentially allowing resource exhaustion.
AI Analysis
Technical Summary
The vulnerability CVE-2026-59648 in Legion of the Bouncy Castle Inc.'s BC-JAVA library involves the OpenPGP Argon2 S2K feature honoring memory and pass parameters chosen by an attacker. This can lead to uncontrolled resource allocation due to lack of limits or throttling (CWE-770). Affected versions include BC-JAVA before 1.85, LTS versions before 2.73.12, and certain BC-FJA FIPS series versions. The CVSS 4.0 base score is 6.9 (medium severity), indicating a network attack vector with no privileges or user interaction required, and low impact on confidentiality, integrity, and availability. No official remediation level or patch links are provided in the data.
Potential Impact
An attacker can specify memory and iteration parameters for Argon2 S2K, potentially causing excessive resource consumption on the affected system. This could degrade performance or cause denial of service due to resource exhaustion. There is no indication of direct compromise of confidentiality or integrity from this vulnerability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official remediation level or patch links are provided, users should monitor the Legion of the Bouncy Castle Inc. advisories for updates. Until a fix is available, consider limiting exposure to untrusted inputs that can trigger Argon2 S2K processing or implement external resource usage controls if possible.
CVE-2026-59648: CWE-770 Allocation of Resources Without Limits or Throttling in Legion of the Bouncy Castle Inc. BC-JAVA
Description
CVE-2026-59648 is a medium severity vulnerability in Bouncy Castle for Java (BC-JAVA) where the OpenPGP Argon2 S2K implementation honors attacker-chosen memory and iteration parameters. This affects versions before 1.85, including LTS versions before 2.73.12 and specific FIPS series versions. The issue relates to allocation of resources without limits or throttling, potentially allowing resource exhaustion.
CVSS v4.0
Score 6.9medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-59648 in Legion of the Bouncy Castle Inc.'s BC-JAVA library involves the OpenPGP Argon2 S2K feature honoring memory and pass parameters chosen by an attacker. This can lead to uncontrolled resource allocation due to lack of limits or throttling (CWE-770). Affected versions include BC-JAVA before 1.85, LTS versions before 2.73.12, and certain BC-FJA FIPS series versions. The CVSS 4.0 base score is 6.9 (medium severity), indicating a network attack vector with no privileges or user interaction required, and low impact on confidentiality, integrity, and availability. No official remediation level or patch links are provided in the data.
Potential Impact
An attacker can specify memory and iteration parameters for Argon2 S2K, potentially causing excessive resource consumption on the affected system. This could degrade performance or cause denial of service due to resource exhaustion. There is no indication of direct compromise of confidentiality or integrity from this vulnerability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official remediation level or patch links are provided, users should monitor the Legion of the Bouncy Castle Inc. advisories for updates. Until a fix is available, consider limiting exposure to untrusted inputs that can trigger Argon2 S2K processing or implement external resource usage controls if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- bcorg
- Date Reserved
- 2026-07-06T07:09:01.524Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a6fe8f3bf32cb7a34b623b8
Added to database: 08/03/2026, 01:03:47 UTC
Last enriched: 08/03/2026, 01:19:11 UTC
Last updated: 08/03/2026, 02:45:40 UTC
Views: 4
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