CVE-2026-87735: CWE-1284 Improper Validation of Specified Quantity in Input in OCaml mirage-crypto-pk
CVE-2026-87735 is a medium severity vulnerability in the mirage-crypto-pk package for OCaml versions before 2.3.0. It involves an undocumented exception triggered by a small message during RSA encryption or decryption. This improper validation of the specified quantity in input may cause availability issues but does not impact confidentiality or integrity.
AI Analysis
Technical Summary
The vulnerability CVE-2026-87735 affects the mirage-crypto-pk package for OCaml prior to version 2.3.0. It is classified under CWE-1284, indicating improper validation of specified quantity in input. Specifically, there is an undocumented exception that occurs when processing a small message during RSA encryption or decryption operations. The CVSS 3.1 base score is 4.3, reflecting a network attack vector with low privileges required and no user interaction needed. The impact is limited to availability, with no confidentiality or integrity impact reported. No official patch or remediation level has been provided yet, and no known exploits are reported in the wild.
Potential Impact
The vulnerability may cause denial of service or disruption during RSA encryption or decryption due to an undocumented exception triggered by small messages. There is no impact on confidentiality or integrity of data. The attack requires network access and low privileges but no user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor for updates from the OCaml mirage-crypto-pk maintainers. No specific workaround or mitigation is documented at this time.
CVE-2026-87735: CWE-1284 Improper Validation of Specified Quantity in Input in OCaml mirage-crypto-pk
Description
CVE-2026-87735 is a medium severity vulnerability in the mirage-crypto-pk package for OCaml versions before 2.3.0. It involves an undocumented exception triggered by a small message during RSA encryption or decryption. This improper validation of the specified quantity in input may cause availability issues but does not impact confidentiality or integrity.
CVSS v3.1
Score 4.3medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-87735 affects the mirage-crypto-pk package for OCaml prior to version 2.3.0. It is classified under CWE-1284, indicating improper validation of specified quantity in input. Specifically, there is an undocumented exception that occurs when processing a small message during RSA encryption or decryption operations. The CVSS 3.1 base score is 4.3, reflecting a network attack vector with low privileges required and no user interaction needed. The impact is limited to availability, with no confidentiality or integrity impact reported. No official patch or remediation level has been provided yet, and no known exploits are reported in the wild.
Potential Impact
The vulnerability may cause denial of service or disruption during RSA encryption or decryption due to an undocumented exception triggered by small messages. There is no impact on confidentiality or integrity of data. The attack requires network access and low privileges but no user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor for updates from the OCaml mirage-crypto-pk maintainers. No specific workaround or mitigation is documented at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-09-09T04:16:24.463Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa0e2c5acd9273b49baa90c
Added to database: 09/09/2026, 04:38:29 UTC
Last enriched: 09/09/2026, 04:52:43 UTC
Last updated: 09/09/2026, 05:07:38 UTC
Views: 4
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