Common Weakness Enumeration
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CWE-385
Covert Timing Channel
Covert timing channels convey information by modulating some aspect of system behavior over time, so that the program receiving the information can observe system behavior and infer protected information.
CVE-2026-5598 (GCVE-0-2026-5598)
Vulnerability from cvelistv5 – Published: 2026-04-15 09:05 – Updated: 2026-06-14 09:34
VLAI
Title
Non-constant time comparisons risk private key leakage in FrodoKEM.
Summary
Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all (core modules).
This vulnerability is associated with program files FrodoEngine.Java.
This issue affects BC-JAVA: from 1.71 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-385 - Covert timing channel
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/bcgit/bc-java/wiki/CVE%E2%80%9… | vendor-advisory |
| https://github.com/bcgit/bc-java/commit/94abbd564… | patch |
| https://github.com/bcgit/bc-java/commit/8692e6b2b… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Legion of the Bouncy Castle Inc. | BC-JAVA |
Affected:
1.71 , < 1.80.2
(maven)
Affected: 1.81 , < 1.81.1 (maven) Affected: 1.82 , < 1.84 (maven) |
Credits
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CVE-2026-6478 (GCVE-0-2026-6478)
Vulnerability from cvelistv5 – Published: 2026-05-14 13:00 – Updated: 2026-05-14 15:33
VLAI
Title
PostgreSQL discloses MD5-hashed passwords via covert timing channel
Summary
Covert timing channel in comparison of MD5-hashed password in PostgreSQL authentication allows an attacker to recover user credentials sufficient to authenticate. This does not affect scram-sha-256 passwords, the default in all supported releases. However, current databases may have MD5-hashed passwords originating in upgrades from PostgreSQL 13 or earlier. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-385 - Covert Timing Channel
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | PostgreSQL |
Affected:
18 , < 18.4
(rpm)
Affected: 17 , < 17.10 (rpm) Affected: 16 , < 16.14 (rpm) Affected: 15 , < 15.18 (rpm) Affected: 0 , < 14.23 (rpm) |
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Mitigation
Phase: Architecture and Design
Description:
- Whenever possible, specify implementation strategies that do not introduce time variances in operations.
Mitigation
Phase: Implementation
Description:
- Often one can artificially manipulate the time which operations take or -- when operations occur -- can remove information from the attacker.
Mitigation
Phase: Implementation
Description:
- It is reasonable to add artificial or random delays so that the amount of CPU time consumed is independent of the action being taken by the application.
CAPEC-462: Cross-Domain Search Timing
An attacker initiates cross domain HTTP / GET requests and times the server responses. The timing of these responses may leak important information on what is happening on the server. Browser's same origin policy prevents the attacker from directly reading the server responses (in the absence of any other weaknesses), but does not prevent the attacker from timing the responses to requests that the attacker issued cross domain.