CWE-208
Observable Timing Discrepancy
Description
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.
Hierarchy (View 1000)
Related attack patterns (CAPEC)
CAPEC-462 · CAPEC-541 · CAPEC-580
CVEs mapped to this weakness (195)
page 7 of 10| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-45410 | Med | 0.27 | 5.3 | 0.00 | May 28, 2026 | TREK is a collaborative travel planner. Prior to 3.0.18, early return on missing user during login flow allowed an attacker to enumerate valid user accounts via response timing discrepancy. When an email address existed in the database, the backend performed a bcrypt password… | ||
| CVE-2026-41418 | Med | 0.27 | 5.3 | 0.00 | Apr 24, 2026 | 4ga Boards is a boards system for realtime project management. Prior to 3.3.5, 4ga Boards is vulnerable to user enumeration via a timing side-channel in the login endpoint (POST /api/access-tokens). When an invalid username/email is provided, the server responds immediately… | ||
| CVE-2026-32702 | Med | 0.27 | 5.3 | 0.00 | Mar 16, 2026 | Cleanuparr is a tool for automating the cleanup of unwanted or blocked files in Sonarr, Radarr, and supported download clients like qBittorrent. From 2.7.0 to 2.8.0, the /api/auth/login endpoint contains a logic flaw that allows unauthenticated remote attackers to enumerate… | ||
| CVE-2026-23849 | Med | 0.27 | 5.3 | 0.00 | Jan 19, 2026 | File Browser provides a file managing interface within a specified directory and can be used to upload, delete, preview, rename, and edit files. Prior to version 2.55.0, the JSONAuth. Auth function contains a logic flaw that allows unauthenticated attackers to enumerate valid… | ||
| CVE-2025-43786 | Med | 0.27 | 5.3 | 0.00 | Sep 9, 2025 | Enumeration of ERC from object entry in Liferay Portal 7.4.0 through 7.4.3.128, and Liferay DXP 2024.Q3.0 through 2024.Q3.1, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.12, 2023.Q4.0 and 7.4 GA through update 92 allow attackers to determine existent ERC in the… | ||
| CVE-2025-43754 | Med | 0.27 | 5.3 | 0.00 | Aug 21, 2025 | Username enumeration vulnerability in Liferay Portal 7.4.0 through 7.4.3.132, and Liferay DXP 2024.Q4.0 through 2024.Q4.7, 2024.Q3.0 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.14 and 7.4 GA through update 92 allows attackers to determine if an… | ||
| CVE-2024-47178 | Med | 0.27 | 5.3 | 0.01 | Sep 30, 2024 | basic-auth-connect is Connect's Basic Auth middleware in its own module. basic-auth-connect < 1.1.0 uses a timing-unsafe equality comparison that can leak timing information. This issue has been fixed in basic-auth-connect 1.1.0. | ||
| CVE-2024-1543 | Med | 0.27 | 4.1 | 0.00 | Aug 29, 2024 | The side-channel protected T-Table implementation in wolfSSL up to version 5.6.5 protects against a side-channel attacker with cache-line resolution. In a controlled environment such as Intel SGX, an attacker can gain a per instruction sub-cache-line resolution allowing them to… | ||
| CVE-2024-24770 | Med | 0.27 | 5.3 | 0.00 | Mar 14, 2024 | vantage6 is an open source framework built to enable, manage and deploy privacy enhancing technologies like Federated Learning and Multi-Party Computation. Much like GHSA-45gq-q4xh-cp53, it is possible to find which usernames exist in vantage6 by calling the API routes… | ||
| CVE-2023-25806 | Med | 0.27 | 5.3 | 0.00 | Mar 2, 2023 | OpenSearch Security is a plugin for OpenSearch that offers encryption, authentication and authorization. There is an observable discrepancy in the authentication response time between calls where the user provided exists and calls where it does not. This issue only affects calls… | ||
| CVE-2026-5091 | Med | 0.26 | 5.1 | 0.00 | May 21, 2026 | Catalyst::Plugin::Authentication versions through 0.10024 for Perl is susceptible to timing attacks. These versions use Perl's built-in eq comparison. Discrepencies in timing could be used to guess the underlying hash or password. | ||
| CVE-2023-25000 | Med | 0.26 | 5.0 | 0.00 | Mar 30, 2023 | HashiCorp Vault's implementation of Shamir's secret sharing used precomputed table lookups, and was vulnerable to cache-timing attacks. An attacker with access to, and the ability to observe a large number of unseal operations on the host through a side channel may reduce the… | ||
| CVE-2026-70437 | Low | 0.24 | 3.7 | 0.00 | Aug 5, 2026 | Jenkins Webhook Secret Credentials Provider Plugin 16.v0cfa_f0215cf5 and earlier does not use a constant-time comparison function when checking whether the provided and expected webhook bearer token are equal, potentially allowing attackers to use statistical methods to obtain a… | ||
| CVE-2026-15041 | Low | 0.24 | 3.7 | 0.00 | Jul 8, 2026 | A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function uses standard memcmp() for comparing password hashes instead of a constant-time comparison function. A remote attacker could potentially use timing measurements of LDAP bind attempts to… | ||
| CVE-2026-48011 | Low | 0.24 | 3.7 | 0.00 | Jun 10, 2026 | Shopware is an open commerce platform. Prior to versions 6.6.10.18 and 6.7.10.1, an attacker is able to enumerate the usernames of administrator users by performing a timing attack. Versions 6.6.10.18 and 6.7.10.1 fix the issue. | ||
| CVE-2026-33006 | Med | 0.24 | 4.8 | 0.01 | May 4, 2026 | A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker. Users are recommended to upgrade to version 2.4.67, which fixes this issue. | ||
| CVE-2026-22746 | Low | 0.24 | 3.7 | 0.00 | Apr 22, 2026 | Vulnerability in Spring Spring Security. If an application is using the UserDetails#isEnabled, #isAccountNonExpired, or #isAccountNonLocked user attributes, to enable, expire, or lock users, then DaoAuthenticationProvider's timing attack defense can be bypassed for users… | ||
| CVE-2026-28475 | Med | 0.24 | 4.8 | 0.00 | Mar 5, 2026 | OpenClaw versions prior to 2026.2.13 use non-constant-time string comparison for hook token validation, allowing attackers to infer tokens through timing measurements. Remote attackers with network access to the hooks endpoint can exploit timing side-channels across multiple… | ||
| CVE-2026-26717 | Med | 0.24 | 4.8 | 0.00 | Feb 25, 2026 | An issue in OpenFUN Richie (LMS) in src/richie/apps/courses/api.py. The application used the non-constant time == operator for HMAC signature verification in the sync_course_run_from_request function. This allows remote attackers to forge valid signatures and bypass… | ||
| CVE-2024-47869 | Low | 0.24 | 3.7 | 0.00 | Oct 10, 2024 | Gradio is an open-source Python package designed for quick prototyping. This vulnerability involves a **timing attack** in the way Gradio compares hashes for the `analytics_dashboard` function. Since the comparison is not done in constant time, an attacker could exploit this by… |
- risk 0.27cvss 5.3epss 0.00
TREK is a collaborative travel planner. Prior to 3.0.18, early return on missing user during login flow allowed an attacker to enumerate valid user accounts via response timing discrepancy. When an email address existed in the database, the backend performed a bcrypt password…
- risk 0.27cvss 5.3epss 0.00
4ga Boards is a boards system for realtime project management. Prior to 3.3.5, 4ga Boards is vulnerable to user enumeration via a timing side-channel in the login endpoint (POST /api/access-tokens). When an invalid username/email is provided, the server responds immediately…
- risk 0.27cvss 5.3epss 0.00
Cleanuparr is a tool for automating the cleanup of unwanted or blocked files in Sonarr, Radarr, and supported download clients like qBittorrent. From 2.7.0 to 2.8.0, the /api/auth/login endpoint contains a logic flaw that allows unauthenticated remote attackers to enumerate…
- risk 0.27cvss 5.3epss 0.00
File Browser provides a file managing interface within a specified directory and can be used to upload, delete, preview, rename, and edit files. Prior to version 2.55.0, the JSONAuth. Auth function contains a logic flaw that allows unauthenticated attackers to enumerate valid…
- risk 0.27cvss 5.3epss 0.00
Enumeration of ERC from object entry in Liferay Portal 7.4.0 through 7.4.3.128, and Liferay DXP 2024.Q3.0 through 2024.Q3.1, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.12, 2023.Q4.0 and 7.4 GA through update 92 allow attackers to determine existent ERC in the…
- risk 0.27cvss 5.3epss 0.00
Username enumeration vulnerability in Liferay Portal 7.4.0 through 7.4.3.132, and Liferay DXP 2024.Q4.0 through 2024.Q4.7, 2024.Q3.0 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.14 and 7.4 GA through update 92 allows attackers to determine if an…
- risk 0.27cvss 5.3epss 0.01
basic-auth-connect is Connect's Basic Auth middleware in its own module. basic-auth-connect < 1.1.0 uses a timing-unsafe equality comparison that can leak timing information. This issue has been fixed in basic-auth-connect 1.1.0.
- risk 0.27cvss 4.1epss 0.00
The side-channel protected T-Table implementation in wolfSSL up to version 5.6.5 protects against a side-channel attacker with cache-line resolution. In a controlled environment such as Intel SGX, an attacker can gain a per instruction sub-cache-line resolution allowing them to…
- risk 0.27cvss 5.3epss 0.00
vantage6 is an open source framework built to enable, manage and deploy privacy enhancing technologies like Federated Learning and Multi-Party Computation. Much like GHSA-45gq-q4xh-cp53, it is possible to find which usernames exist in vantage6 by calling the API routes…
- risk 0.27cvss 5.3epss 0.00
OpenSearch Security is a plugin for OpenSearch that offers encryption, authentication and authorization. There is an observable discrepancy in the authentication response time between calls where the user provided exists and calls where it does not. This issue only affects calls…
- risk 0.26cvss 5.1epss 0.00
Catalyst::Plugin::Authentication versions through 0.10024 for Perl is susceptible to timing attacks. These versions use Perl's built-in eq comparison. Discrepencies in timing could be used to guess the underlying hash or password.
- risk 0.26cvss 5.0epss 0.00
HashiCorp Vault's implementation of Shamir's secret sharing used precomputed table lookups, and was vulnerable to cache-timing attacks. An attacker with access to, and the ability to observe a large number of unseal operations on the host through a side channel may reduce the…
- risk 0.24cvss 3.7epss 0.00
Jenkins Webhook Secret Credentials Provider Plugin 16.v0cfa_f0215cf5 and earlier does not use a constant-time comparison function when checking whether the provided and expected webhook bearer token are equal, potentially allowing attackers to use statistical methods to obtain a…
- risk 0.24cvss 3.7epss 0.00
A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function uses standard memcmp() for comparing password hashes instead of a constant-time comparison function. A remote attacker could potentially use timing measurements of LDAP bind attempts to…
- risk 0.24cvss 3.7epss 0.00
Shopware is an open commerce platform. Prior to versions 6.6.10.18 and 6.7.10.1, an attacker is able to enumerate the usernames of administrator users by performing a timing attack. Versions 6.6.10.18 and 6.7.10.1 fix the issue.
- risk 0.24cvss 4.8epss 0.01
A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker. Users are recommended to upgrade to version 2.4.67, which fixes this issue.
- risk 0.24cvss 3.7epss 0.00
Vulnerability in Spring Spring Security. If an application is using the UserDetails#isEnabled, #isAccountNonExpired, or #isAccountNonLocked user attributes, to enable, expire, or lock users, then DaoAuthenticationProvider's timing attack defense can be bypassed for users…
- risk 0.24cvss 4.8epss 0.00
OpenClaw versions prior to 2026.2.13 use non-constant-time string comparison for hook token validation, allowing attackers to infer tokens through timing measurements. Remote attackers with network access to the hooks endpoint can exploit timing side-channels across multiple…
- risk 0.24cvss 4.8epss 0.00
An issue in OpenFUN Richie (LMS) in src/richie/apps/courses/api.py. The application used the non-constant time == operator for HMAC signature verification in the sync_course_run_from_request function. This allows remote attackers to forge valid signatures and bypass…
- risk 0.24cvss 3.7epss 0.00
Gradio is an open-source Python package designed for quick prototyping. This vulnerability involves a **timing attack** in the way Gradio compares hashes for the `analytics_dashboard` function. Since the comparison is not done in constant time, an attacker could exploit this by…