randombit botan up to 3.10.x X509 Path Validation signature verification

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in randombit botan up to 3.10.x. The affected element is an unknown function of the component X509 Path Validation Handler. Such manipulation leads to signature verification. This vulnerability is uniquely identified as CVE-2026-32883. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in randombit botan up to 3.10.x and classified as problematic. Affected by this issue is some unknown functionality of the component X509 Path Validation Handler. The manipulation with an unknown input leads to a signature verification vulnerability. Using CWE to declare the problem leads to CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. Impacted is integrity. CVE summarizes:

Botan is a C++ cryptography library. From version 3.0.0 to before version 3.11.0, during X509 path validation, OCSP responses were checked for an appropriate status code, but critically omitted verifying the signature of the OCSP response itself. This issue has been patched in version 3.11.0.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-32883 since 03/16/2026. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 310592 (Fedora 44 : botan3 (2026-e7d1590ecd)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.11.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (310592). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.9
CNA Vector (GitHub_M): 🔒

CVSSv2info

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

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 310592
Nessus Name: Fedora 44 : botan3 (2026-e7d1590ecd)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: botan 3.11.0

Timelineinfo

03/16/2026 CVE reserved
03/30/2026 +14 days VulDB entry created
03/31/2026 +0 days Advisory disclosed
04/29/2026 +29 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-9j2j-hqmc-hf5x
Status: Confirmed

CVE: CVE-2026-32883 (🔒)
GCVE (CVE): GCVE-0-2026-32883
GCVE (VulDB): GCVE-100-354272

Entryinfo

Created: 03/31/2026 00:19
Updated: 04/29/2026 01:33
Changes: 03/31/2026 00:19 (64), 04/29/2026 01:33 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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