CWE-208

Observable Timing Discrepancy

Parent: CWE-203 - Observable Discrepancy

Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.

137 vulnerabilities with CWE-208
CVE-2026-40194 LOW
phpseclib SSH2::get_binary_packet() - Variable-Time HMAC Comparison
CVSS 3.7
CVE-2026-39321 LOW
Parse Server Login Endpoint - User Enumeration Timing Side-Channel
CVSS 3.7
CVE-2026-21713 MEDIUM
Node.js 20.x-20.20.1 22.x-22.22.1 24.x-24.14.0 25.x-25.8.1 - Observable Timing Discrepancy in HMAC Verification
CVSS 5.9
CVE-2026-32595 LOW
Traefik: BasicAuth Middleware Timing Attack Allows Username Enumeration
CVSS 3.7
CVE-2026-33129 MEDIUM
h3 requireBasicAuth - Timing Side Channel
CVSS 5.9
CVE-2026-32935 MEDIUM
phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack
CVSS 5.9
CVE-2026-32702 MEDIUM
Cleanuparr has Username Enumeration via Timing Attack
CVSS 5.3
CVE-2026-28475 MEDIUM
OpenClaw <2026.2.13 - Info Disclosure
CVSS 4.8
CVE-2026-28464 MEDIUM
OpenClaw <2026.2.12 - Info Disclosure
CVSS 5.9
CVE-2026-3337 MEDIUM
AWS-LC < 1.69.0 and 3.0.0-3.1.9 - Observable Timing Discrepancy in AES-CCM Decryption via EVP CIPHER API
CVSS 5.9
CVE-2026-26717 MEDIUM
Richie < 3.3.0 - Observable Timing Discrepancy in HMAC Signature Verification
CVSS 4.8
CVE-2026-23901 LOW
Apache Shiro <2.0.7 - Info Disclosure
CVSS 2.5
CVE-2026-25597 MEDIUM
PrestaShop <8.2.4, <9.0.3 - Info Disclosure
CVSS 5.3
CVE-2026-23892 MEDIUM
OctoPrint <1.11.5 - Info Disclosure
CVSS 5.9
CVE-2026-23996 LOW
FastAPI Api Key <1.1.0 - Info Disclosure
CVSS 3.7
CVE-2026-23849 MEDIUM
File Browser <2.55.0 - Info Disclosure
CVSS 5.3
CVE-2026-23519 CRITICAL
RustCrypto CMOV <0.4.4 - Info Disclosure
CVSS 9.8
CVE-2025-70949 HIGH
@perfood/couch-auth 0.26.0 - Info Disclosure
CVSS 7.5
CVE-2025-48630 HIGH
Android - Observable Timing Discrepancy in SkiaRenderEngine
CVSS 7.4
CVE-2025-68621 HIGH
Trilium Notes <0.101.0 - Auth Bypass
CVSS 7.4
CVE-2025-13473 MEDIUM
Django <6.0.2-4.2.28 - Info Disclosure
CVSS 5.3
CVE-2025-22234 MEDIUM
Timing Attack Mitigation - Info Disclosure
CVSS 5.3
CVE-2025-52457 MEDIUM
Command Centre Server <9.30.251028a - Info Disclosure
CVSS 5.7
CVE-2025-59438 MEDIUM
Mbed TLS < 3.6.5 - Observable Timing Discrepancy
CVSS 5.3
CVE-2025-54764 MEDIUM
Mbed TLS < 3.6.5 - Observable Timing Discrepancy in RSA Operations
CVSS 6.2
Details
Vulnerabilities 137