CWE-203
Observable Discrepancy
Description
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.
Hierarchy (View 1000)
Related attack patterns (CAPEC)
CAPEC-189
CVEs mapped to this weakness (762)
page 29 of 39| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| 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-2026-23511 | Med | 0.27 | 5.3 | 0.00 | Jan 15, 2026 | ZITADEL is an open source identity management platform. Prior to 4.9.1 and 3.4.6, a user enumeration vulnerability has been discovered in Zitadel's login interfaces. An unauthenticated attacker can exploit this flaw to confirm the existence of valid user accounts by iterating… | ||
| 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-2025-43751 | Med | 0.27 | 5.3 | 0.00 | Aug 22, 2025 | User 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, 2023.Q4.0 through 2023.Q4.10, 2023.Q3.1 through 2023.Q3.10 and 7.4 GA… | ||
| CVE-2024-54002 | Med | 0.27 | 5.3 | 0.00 | Dec 4, 2024 | Dependency-Track is a Component Analysis platform that allows organizations to identify and reduce risk in the software supply chain. Performing a login request against the /api/v1/user/login endpoint with a username that exist in the system takes significantly longer than… | ||
| CVE-2024-45678 | Med | 0.27 | 4.2 | 0.00 | Sep 3, 2024 | Yubico YubiKey 5 Series devices with firmware before 5.7.0 and YubiHSM 2 devices with firmware before 2.4.0 allow an ECDSA secret-key extraction attack (that requires physical access and expensive equipment) in which an electromagnetic side channel is present because of a… | ||
| 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-2024-41880 | Med | 0.27 | 5.3 | 0.00 | Jul 22, 2024 | In veilid-core in Veilid before 0.3.4, the protocol's ping function can be misused in a way that decreases the effectiveness of safety and private routes. | ||
| CVE-2024-26268 | Med | 0.27 | 5.3 | 0.01 | Feb 20, 2024 | User enumeration vulnerability in Liferay Portal 7.2.0 through 7.4.3.26, and older unsupported versions, and Liferay DXP 7.4 before update 27, 7.3 before update 8, 7.2 before fix pack 20, and older unsupported versions allows remote attackers to determine if an account exist in… | ||
| CVE-2023-41885 | Med | 0.27 | 5.3 | 0.00 | Sep 12, 2023 | Piccolo is an ORM and query builder which supports asyncio. In versions 0.120.0 and prior, the implementation of `BaseUser.login` leaks enough information to a malicious user such that they would be able to successfully generate a list of valid users on the platform. As Piccolo… | ||
| CVE-2023-39522 | Med | 0.27 | 5.3 | 0.01 | Aug 29, 2023 | goauthentik is an open-source Identity Provider. In affected versions using a recovery flow with an identification stage an attacker is able to determine if a username exists. Only setups configured with a recovery flow are impacted by this. Anyone with a user account on a… | ||
| CVE-2021-46876 | Med | 0.27 | 5.3 | 0.01 | Mar 12, 2023 | An issue was discovered in eZ Publish Ibexa Kernel before 7.5.15.1. The /user/sessions endpoint can be abused to determine account existence. | ||
| 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-2022-39228 | Med | 0.27 | 5.3 | 0.01 | Mar 1, 2023 | vantage6 is a privacy preserving federated learning infrastructure for secure insight exchange. vantage6 does not inform the user of wrong username/password combination if the username actually exists. This is an attempt to prevent bots from obtaining usernames. However, if a… | ||
| CVE-2019-14353 | Med | 0.27 | 4.2 | 0.00 | Aug 8, 2019 | On Trezor One devices before 1.8.2, a side channel for the row-based OLED display was found. The power consumption of each row-based display cycle depends on the number of illuminated pixels, allowing a partial recovery of display contents. For example, a hardware implant in the… | ||
| CVE-2018-5407 | Med | 0.27 | 4.7 | 0.03 | Nov 15, 2018 | Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to timing attacks via a side-channel timing attack on 'port contention'. | ||
| CVE-2026-73409 | Med | 0.26 | — | 0.00 | Aug 12, 2026 | Budibase is an open-source low-code platform. Prior to 3.40.1, packages/server/src/integrations/mongodb.ts passed builder-controlled tlsCertificateKeyFile and tlsCAFile values directly to MongoClient on Budibase Cloud. A builder could submit absolute server paths through… | ||
| CVE-2024-8992 | Med | 0.26 | 4.0 | 0.00 | Dec 26, 2024 | Some Honor products are affected by information leak vulnerability, successful exploitation could cause the information leak. | ||
| CVE-2023-50306 | Med | 0.26 | 4.0 | 0.00 | Feb 20, 2024 | IBM Common Licensing 9.0 could allow a local user to enumerate usernames due to an observable response discrepancy. IBM X-Force ID: 273337. | ||
| 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… |
- 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
ZITADEL is an open source identity management platform. Prior to 4.9.1 and 3.4.6, a user enumeration vulnerability has been discovered in Zitadel's login interfaces. An unauthenticated attacker can exploit this flaw to confirm the existence of valid user accounts by iterating…
- 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
User 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, 2023.Q4.0 through 2023.Q4.10, 2023.Q3.1 through 2023.Q3.10 and 7.4 GA…
- risk 0.27cvss 5.3epss 0.00
Dependency-Track is a Component Analysis platform that allows organizations to identify and reduce risk in the software supply chain. Performing a login request against the /api/v1/user/login endpoint with a username that exist in the system takes significantly longer than…
- risk 0.27cvss 4.2epss 0.00
Yubico YubiKey 5 Series devices with firmware before 5.7.0 and YubiHSM 2 devices with firmware before 2.4.0 allow an ECDSA secret-key extraction attack (that requires physical access and expensive equipment) in which an electromagnetic side channel is present because of a…
- 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
In veilid-core in Veilid before 0.3.4, the protocol's ping function can be misused in a way that decreases the effectiveness of safety and private routes.
- risk 0.27cvss 5.3epss 0.01
User enumeration vulnerability in Liferay Portal 7.2.0 through 7.4.3.26, and older unsupported versions, and Liferay DXP 7.4 before update 27, 7.3 before update 8, 7.2 before fix pack 20, and older unsupported versions allows remote attackers to determine if an account exist in…
- risk 0.27cvss 5.3epss 0.00
Piccolo is an ORM and query builder which supports asyncio. In versions 0.120.0 and prior, the implementation of `BaseUser.login` leaks enough information to a malicious user such that they would be able to successfully generate a list of valid users on the platform. As Piccolo…
- risk 0.27cvss 5.3epss 0.01
goauthentik is an open-source Identity Provider. In affected versions using a recovery flow with an identification stage an attacker is able to determine if a username exists. Only setups configured with a recovery flow are impacted by this. Anyone with a user account on a…
- risk 0.27cvss 5.3epss 0.01
An issue was discovered in eZ Publish Ibexa Kernel before 7.5.15.1. The /user/sessions endpoint can be abused to determine account existence.
- 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 0.27cvss 5.3epss 0.01
vantage6 is a privacy preserving federated learning infrastructure for secure insight exchange. vantage6 does not inform the user of wrong username/password combination if the username actually exists. This is an attempt to prevent bots from obtaining usernames. However, if a…
- risk 0.27cvss 4.2epss 0.00
On Trezor One devices before 1.8.2, a side channel for the row-based OLED display was found. The power consumption of each row-based display cycle depends on the number of illuminated pixels, allowing a partial recovery of display contents. For example, a hardware implant in the…
- risk 0.27cvss 4.7epss 0.03
Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to timing attacks via a side-channel timing attack on 'port contention'.
- risk 0.26cvss —epss 0.00
Budibase is an open-source low-code platform. Prior to 3.40.1, packages/server/src/integrations/mongodb.ts passed builder-controlled tlsCertificateKeyFile and tlsCAFile values directly to MongoClient on Budibase Cloud. A builder could submit absolute server paths through…
- risk 0.26cvss 4.0epss 0.00
Some Honor products are affected by information leak vulnerability, successful exploitation could cause the information leak.
- risk 0.26cvss 4.0epss 0.00
IBM Common Licensing 9.0 could allow a local user to enumerate usernames due to an observable response discrepancy. IBM X-Force ID: 273337.
- 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…