Legion of the Bouncy Castle BC-JAVA/BC-LTS-JAVA/BC-FJA prior 1.85/2.73.12/1.0.13/2.0.13/2.1.13 input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k2.66

Summaryinfo

A vulnerability classified as problematic was found in Legion of the Bouncy Castle BC-JAVA, BC-LTS-JAVA and BC-FJA. Impacted is an unknown function. The manipulation results in input validation. This vulnerability is cataloged as CVE-2026-59649. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in Legion of the Bouncy Castle BC-JAVA, BC-LTS-JAVA and BC-FJA. Affected is an unknown function. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. CVE summarizes:

In Bouncy Castle for Java before 1.85, OpenPGP user-attribute subpacket length bounded only by JVM max memory. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpg-fips 1.0.13 (1.0.X series), 2.0.13 (2.0.X series) and 2.1.13 (2.1.X series).

The advisory is available at github.com. This vulnerability is traded as CVE-2026-59649 since 07/06/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The technical details are unknown and an exploit is not available.

Upgrading to version 1.85, 2.73.12, 1.0.13, 2.0.13 or 2.1.13 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: BC-JAVA/BC-LTS-JAVA/BC-FJA 1.85/2.73.12/1.0.13/2.0.13/2.1.13

Timelineinfo

07/06/2026 CVE reserved
08/03/2026 +28 days Advisory disclosed
08/03/2026 +0 days VulDB entry created
08/03/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-59649 (🔒)
GCVE (CVE): GCVE-0-2026-59649
GCVE (VulDB): GCVE-100-385434

Entryinfo

Created: 08/03/2026 03:30
Changes: 08/03/2026 03:30 (54)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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