CVE-2026-67336

Signals

NVD · CVE-2026-18980 · 6.3 · A vulnerability was identified in nearai ironclaw up to 0.29.1. Affected is the function classify_command_risk of the file src/tools/builtin/shell.rs. Such maniNVD · CVE-2026-18976 · 6.3 · A vulnerability was determined in NousResearch hermes-agent up to 0.16.0. This impacts the function get_tool_definitions of the file agent/agent_init.py of the NVD · CVE-2026-18974 · 5.3 · A vulnerability was found in heshengtao super-agent-party up to 0.4.1. This affects the function get_file_content of the file server.py of the component executeNVD · CVE-2026-18973 · 7.3 · A vulnerability has been found in heshengtao super-agent-party up to 0.4.1. The impacted element is the function sanitize_proxy_url of the file server.py of theCISA KEV · CVE-2026-63077 · 9.8 · JetBrains TeamCity Deserialization of Untrusted Data Vulnerability · Added 2026-08-05 · Due 2026-08-08CISA KEV · CVE-2026-18556 · 7.4 · N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability · Added 2026-08-04 · Due 2026-08-07NVD · CVE-2026-18980 · 6.3 · A vulnerability was identified in nearai ironclaw up to 0.29.1. Affected is the function classify_command_risk of the file src/tools/builtin/shell.rs. Such maniNVD · CVE-2026-18976 · 6.3 · A vulnerability was determined in NousResearch hermes-agent up to 0.16.0. This impacts the function get_tool_definitions of the file agent/agent_init.py of the NVD · CVE-2026-18974 · 5.3 · A vulnerability was found in heshengtao super-agent-party up to 0.4.1. This affects the function get_file_content of the file server.py of the component executeNVD · CVE-2026-18973 · 7.3 · A vulnerability has been found in heshengtao super-agent-party up to 0.4.1. The impacted element is the function sanitize_proxy_url of the file server.py of theCISA KEV · CVE-2026-63077 · 9.8 · JetBrains TeamCity Deserialization of Untrusted Data Vulnerability · Added 2026-08-05 · Due 2026-08-08CISA KEV · CVE-2026-18556 · 7.4 · N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability · Added 2026-08-04 · Due 2026-08-07

CVE Database · CVE-2026-67336

CVE-2026-67336

· HIGHReceived

CVSS v3.1

8.7

CVSS v4.0

9.4

EPSS

0.16%

Published

Aug 1, 2026

Modified

Aug 3, 2026

Public PoC / Exploit

All weaponized →

No public PoC or exploit code indexed for this CVE.

Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

better-auth versions before 1.6.11 contain insecure cryptographic defaults in the oidcProvider and mcp plugins that advertise the none algorithm and accept plain PKCE by default. Attackers can exploit algorithm negotiation to accept unsigned tokens or intercept authorization codes when PKCE plain is used instead of the required S256 method.

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Weaknesses (CWE)

CWE-327

References (2)

https://github.com/better-auth/better-auth/security/advisories/GHSA-9h47-pqcx-hjr4

https://www.vulncheck.com/advisories/better-auth-before-insecure-cryptographic-defaults-via-oidcprovider

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