CVE-2026-34582 | randombit botan up to 3.11.0 behavioral workflow

VDB-355958 · CVE-2026-34582 · GCVE-0-2026-34582 RANDOMBIT BOTAN UP TO 3.11.0 BEHAVIORAL WORKFLOW HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.1 $0-$5k 2.31 Summaryinfo A vulnerability categorized as problematic has been discovered in randombit botan up to 3.11.0. This impacts an unknown function. Such manipulation leads to behavioral workflow. This vulnerability is listed as CVE-2026-34582. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component. Detailsinfo A vulnerability was found in randombit botan up to 3.11.0. It has been rated as problematic. Affected by this issue is an unknown functionality. The manipulation with an unknown input leads to a behavioral workflow vulnerability. Using CWE to declare the problem leads to CWE-841. The product supports a session in which more than one behavior must be performed by an actor, but it does not properly ensure that the actor performs the behaviors in the required sequence. Impacted is integrity. CVE summarizes: Botan is a C++ cryptography library. Prior to version 3.11.1, the TLS 1.3 implementation allowed ApplicationData records to be processed prior to the Finished message being received. A server which is attempting to enforce client authentication via certificates can by bypassed by a client which entirely omits Certificate, CertificateVerify, and the Finished message and instead sends application data records. This vulnerability is fixed in 3.11.1. The advisory is available at github.com. This vulnerability is handled as CVE-2026-34582 since 03/30/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. Upgrading to version 3.11.1 eliminates this vulnerability. Productinfo Vendor randombit Name botan Version 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11.0 License open-source Website Product: https://github.com/randombit/botan/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 5.3 VulDB Meta Temp Score: 5.1 VulDB Base Score: 5.3 VulDB Temp Score: 5.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Behavioral workflow CWE: CWE-841 / CWE-840 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: botan 3.11.1 Timelineinfo 03/30/2026 CVE reserved 04/07/2026 +8 days Advisory disclosed 04/07/2026 +0 days VulDB entry created 04/07/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-34582 (🔒) GCVE (CVE): GCVE-0-2026-34582 GCVE (VulDB): GCVE-100-355958 Entryinfo Created: 04/07/2026 23:35 Changes: 04/07/2026 23:35 (65) Complete: 🔍 Cache ID: 99:1B4:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸