CVE-2026-32877 | randombit botan up to 3.10.x out-of-bounds (GHSA-7jj6-4r42-w9h6)

VDB-354283 · CVE-2026-32877 · GHSA-7JJ6-4R42-W9H6 RANDOMBIT BOTAN UP TO 3.10.X OUT-OF-BOUNDS HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.6 $0-$5k 1.94 Summaryinfo A vulnerability classified as critical has been found in randombit botan up to 3.10.x. The affected element is an unknown function. This manipulation causes out-of-bounds. This vulnerability appears as CVE-2026-32877. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component. Detailsinfo A vulnerability was found in randombit botan up to 3.10.x. It has been declared as critical. Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is: Botan is a C++ cryptography library. From version 2.3.0 to before version 3.11.0, during SM2 decryption, the code that checked the authentication code value (C3) failed to check that the encoded value was of the expected length prior to comparison. An invalid ciphertext can cause a heap over-read of up to 31 bytes, resulting in a crash or potentially other undefined behavior. This issue has been patched in version 3.11.0. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-32877 since 03/16/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. Upgrading to version 3.11.0 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 License open-source Website Product: https://github.com/randombit/botan/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 7.7 VulDB Meta Temp Score: 7.6 VulDB Base Score: 7.3 VulDB Temp Score: 7.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 8.2 CNA Vector (GitHub_M): 🔒 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: Out-of-bounds CWE: CWE-125 / CWE-119 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 3.11.0 Timelineinfo 03/16/2026 CVE reserved 03/30/2026 +14 days VulDB entry created 03/31/2026 +0 days Advisory disclosed 03/31/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-7jj6-4r42-w9h6 Status: Confirmed CVE: CVE-2026-32877 (🔒) GCVE (CVE): GCVE-0-2026-32877 GCVE (VulDB): GCVE-100-354283 Entryinfo Created: 03/31/2026 00:23 Changes: 03/31/2026 00:23 (64) Complete: 🔍 Cache ID: 99:5B4:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸