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 4 of 10| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2021-29445 | Med | 0.38 | 5.9 | 0.01 | Apr 16, 2021 | jose-node-esm-runtime is an npm package which provides a number of cryptographic functions. In versions prior to 3.11.4 the AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if… | ||
| CVE-2019-13420 | Med | 0.38 | 5.9 | 0.01 | Aug 13, 2019 | Search Guard versions before 21.0 had an timing side channel issue when using the internal user database. | ||
| CVE-2025-52457 | Med | 0.37 | 5.7 | 0.00 | Nov 18, 2025 | Observable Timing Discrepancy (CWE-208) in HBUS devices may allow an attacker with physical access to the device to extract device-specific keys, potentially compromising further site security. This issue affects Command Centre Server: 9.30 prior to vCR9.30.251028a… | ||
| CVE-2025-59432 | Med | 0.36 | — | 0.01 | Sep 22, 2025 | SCRAM (Salted Challenge Response Authentication Mechanism) is part of the family of Simple Authentication and Security Layer (SASL, RFC 4422) authentication mechanisms. Prior to version 3.2, a timing attack vulnerability exists in the SCRAM Java implementation. The issue arises… | ||
| CVE-2021-26314 | Med | 0.36 | 5.5 | 0.01 | Jun 9, 2021 | Potential floating point value injection in all supported CPU products, in conjunction with software vulnerabilities relating to speculative execution with incorrect floating point results, may cause the use of incorrect data from FPVI and may result in data leakage. | ||
| CVE-2021-26313 | Med | 0.36 | 5.5 | 0.00 | Jun 9, 2021 | Potential speculative code store bypass in all supported CPU products, in conjunction with software vulnerabilities relating to speculative execution of overwritten instructions, may cause an incorrect speculation and could result in data leakage. | ||
| CVE-2026-6291 | Med | 0.35 | 6.5 | 0.00 | Jun 25, 2026 | Bleichenbacher padding oracle in PKCS#7 KTRI decryption. When decrypting PKCS#7 EnvelopedData using RSA PKCS#1 v1.5 key transport, wolfSSL returned distinguishable error codes depending on whether RSA padding validation failed versus whether the decrypted content was malformed.… | ||
| CVE-2024-54772 | Med | 0.35 | 5.4 | 0.01 | Feb 11, 2025 | An issue was discovered in the Winbox service of MikroTik RouterOS long-term release v6.43.13 through v6.49.13 and stable v6.43 through v7.17.2. A patch is available in the stable release v6.49.18. A discrepancy in response size between connection attempts made with a valid… | ||
| CVE-2024-23953 | Med | 0.35 | 6.5 | 0.01 | Jan 28, 2025 | Use of Arrays.equals() in LlapSignerImpl in Apache Hive to compare message signatures allows attacker to forge a valid signature for an arbitrary message byte by byte. The attacker should be an authorized user of the product to perform this attack. Users are recommended to… | ||
| CVE-2024-42368 | Med | 0.35 | 6.5 | 0.01 | Aug 13, 2024 | OpenTelemetry, also known as OTel, is a vendor-neutral open source Observability framework for instrumenting, generating, collecting, and exporting telemetry data such as traces, metrics, and logs. The bearertokenauth extension's server authenticator performs a simple,… | ||
| CVE-2022-20752 | Med | 0.35 | 5.3 | 0.01 | Jul 6, 2022 | A vulnerability in Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection could allow an unauthenticated, remote attacker to perform a timing attack. This vulnerability is… | ||
| CVE-2026-47380 | Med | 0.34 | — | 0.00 | Jun 23, 2026 | NocoDB is software for building databases as spreadsheets. Prior to 2026.04.1, sign-in response timing differed between known and unknown email addresses because the unknown-user branch returned without performing a password hash comparison. This vulnerability is fixed in… | ||
| CVE-2026-48166 | Med | 0.34 | 5.3 | 0.00 | Jun 22, 2026 | Filament is a collection of full-stack components for accelerated Laravel development. From 4.0.0 until 4.11.5 and 5.6.5, the login page has an observable timing discrepancy that allows unauthenticated attackers to enumerate registered email addresses. The impact is limited to… | ||
| CVE-2026-41161 | Med | 0.34 | 5.3 | 0.00 | May 8, 2026 | Sync-in Server is a secure, open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.2.0, the /api/auth/login endpoint contains a logic flaw that allows unauthenticated remote attackers to enumerate valid usernames by measuring the… | ||
| CVE-2026-25597 | Med | 0.34 | 5.3 | 0.00 | Feb 6, 2026 | PrestaShop is an open source e-commerce web application. Prior to 8.2.4 and 9.0.3, there is a time-based user enumeration vulnerability in the user authentication functionality of PrestaShop. This vulnerability allows an attacker to determine whether a customer account exists in… | ||
| CVE-2025-22234 | — | Med | 0.34 | 5.3 | 0.00 | Jan 22, 2026 | The fix applied in CVE-2025-22228 inadvertently broke the timing attack mitigation implemented in DaoAuthenticationProvider. This can allow attackers to infer valid usernames or other authentication behavior via response-time differences under certain configurations. | |
| CVE-2025-59438 | Med | 0.34 | 5.3 | 0.00 | Oct 21, 2025 | Mbed TLS through 3.6.4 has an Observable Timing Discrepancy. | ||
| CVE-2025-59350 | Med | 0.34 | 5.3 | 0.00 | Sep 17, 2025 | Dragonfly is an open source P2P-based file distribution and image acceleration system. Prior to 2.1.0, the access control mechanism for the Proxy feature uses simple string comparisons and is therefore vulnerable to timing attacks. An attacker may try to guess the password one… | ||
| CVE-2025-27936 | Med | 0.34 | 5.3 | 0.00 | Apr 16, 2025 | Mattermost Plugin MSTeams versions <2.1.0 and Mattermost Server versions 10.5.x <=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows an attacker to retrieve the webhook secret of the MSTeams plugin… | ||
| CVE-2025-30344 | Med | 0.34 | 5.3 | 0.00 | Mar 21, 2025 | An issue was discovered in OpenSlides before 4.2.5. During login at the /system/auth/login/ endpoint, the system's response times differ depending on whether a user exists in the system. The timing discrepancy stems from the omitted hashing of the password (e.g., more than 100… |
- risk 0.38cvss 5.9epss 0.01
jose-node-esm-runtime is an npm package which provides a number of cryptographic functions. In versions prior to 3.11.4 the AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if…
- risk 0.38cvss 5.9epss 0.01
Search Guard versions before 21.0 had an timing side channel issue when using the internal user database.
- risk 0.37cvss 5.7epss 0.00
Observable Timing Discrepancy (CWE-208) in HBUS devices may allow an attacker with physical access to the device to extract device-specific keys, potentially compromising further site security. This issue affects Command Centre Server: 9.30 prior to vCR9.30.251028a…
- risk 0.36cvss —epss 0.01
SCRAM (Salted Challenge Response Authentication Mechanism) is part of the family of Simple Authentication and Security Layer (SASL, RFC 4422) authentication mechanisms. Prior to version 3.2, a timing attack vulnerability exists in the SCRAM Java implementation. The issue arises…
- risk 0.36cvss 5.5epss 0.01
Potential floating point value injection in all supported CPU products, in conjunction with software vulnerabilities relating to speculative execution with incorrect floating point results, may cause the use of incorrect data from FPVI and may result in data leakage.
- risk 0.36cvss 5.5epss 0.00
Potential speculative code store bypass in all supported CPU products, in conjunction with software vulnerabilities relating to speculative execution of overwritten instructions, may cause an incorrect speculation and could result in data leakage.
- risk 0.35cvss 6.5epss 0.00
Bleichenbacher padding oracle in PKCS#7 KTRI decryption. When decrypting PKCS#7 EnvelopedData using RSA PKCS#1 v1.5 key transport, wolfSSL returned distinguishable error codes depending on whether RSA padding validation failed versus whether the decrypted content was malformed.…
- risk 0.35cvss 5.4epss 0.01
An issue was discovered in the Winbox service of MikroTik RouterOS long-term release v6.43.13 through v6.49.13 and stable v6.43 through v7.17.2. A patch is available in the stable release v6.49.18. A discrepancy in response size between connection attempts made with a valid…
- risk 0.35cvss 6.5epss 0.01
Use of Arrays.equals() in LlapSignerImpl in Apache Hive to compare message signatures allows attacker to forge a valid signature for an arbitrary message byte by byte. The attacker should be an authorized user of the product to perform this attack. Users are recommended to…
- risk 0.35cvss 6.5epss 0.01
OpenTelemetry, also known as OTel, is a vendor-neutral open source Observability framework for instrumenting, generating, collecting, and exporting telemetry data such as traces, metrics, and logs. The bearertokenauth extension's server authenticator performs a simple,…
- risk 0.35cvss 5.3epss 0.01
A vulnerability in Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection could allow an unauthenticated, remote attacker to perform a timing attack. This vulnerability is…
- risk 0.34cvss —epss 0.00
NocoDB is software for building databases as spreadsheets. Prior to 2026.04.1, sign-in response timing differed between known and unknown email addresses because the unknown-user branch returned without performing a password hash comparison. This vulnerability is fixed in…
- risk 0.34cvss 5.3epss 0.00
Filament is a collection of full-stack components for accelerated Laravel development. From 4.0.0 until 4.11.5 and 5.6.5, the login page has an observable timing discrepancy that allows unauthenticated attackers to enumerate registered email addresses. The impact is limited to…
- risk 0.34cvss 5.3epss 0.00
Sync-in Server is a secure, open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.2.0, the /api/auth/login endpoint contains a logic flaw that allows unauthenticated remote attackers to enumerate valid usernames by measuring the…
- risk 0.34cvss 5.3epss 0.00
PrestaShop is an open source e-commerce web application. Prior to 8.2.4 and 9.0.3, there is a time-based user enumeration vulnerability in the user authentication functionality of PrestaShop. This vulnerability allows an attacker to determine whether a customer account exists in…
- risk 0.34cvss 5.3epss 0.00
The fix applied in CVE-2025-22228 inadvertently broke the timing attack mitigation implemented in DaoAuthenticationProvider. This can allow attackers to infer valid usernames or other authentication behavior via response-time differences under certain configurations.
- risk 0.34cvss 5.3epss 0.00
Mbed TLS through 3.6.4 has an Observable Timing Discrepancy.
- risk 0.34cvss 5.3epss 0.00
Dragonfly is an open source P2P-based file distribution and image acceleration system. Prior to 2.1.0, the access control mechanism for the Proxy feature uses simple string comparisons and is therefore vulnerable to timing attacks. An attacker may try to guess the password one…
- risk 0.34cvss 5.3epss 0.00
Mattermost Plugin MSTeams versions <2.1.0 and Mattermost Server versions 10.5.x <=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows an attacker to retrieve the webhook secret of the MSTeams plugin…
- risk 0.34cvss 5.3epss 0.00
An issue was discovered in OpenSlides before 4.2.5. During login at the /system/auth/login/ endpoint, the system's response times differ depending on whether a user exists in the system. The timing discrepancy stems from the omitted hashing of the password (e.g., more than 100…