CWE-330
Use of Insufficiently Random Values
The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.
CVE-2026-41505 (GCVE-0-2026-41505)
Vulnerability from cvelistv5 – Published: 2026-05-07 13:35 – Updated: 2026-05-07 14:44
VLAI
Title
RELATE: Predictable Token Generation in auth.py and exam.py
Summary
RELATE is a web-based courseware package. Prior to commit 2f68e16, RELATE is vulnerable to predictable token generation in auth.py's make_sign_in_key() function and exam.py's gen_ticket_code() function. This issue has been patched via commit 2f68e16.
Severity
8.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/inducer/relate/security/adviso… | x_refsource_CONFIRM |
| https://github.com/inducer/relate/commit/2f68e16c… | x_refsource_MISC |
Impacted products
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CVE-2026-42155 (GCVE-0-2026-42155)
Vulnerability from cvelistv5 – Published: 2026-05-15 17:05 – Updated: 2026-05-15 17:36
VLAI
Title
Magento LTS: Weak API Session ID — Predictable MD5 of Time-Derived Inputs
Summary
Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform with a high level of backward compatibility. Prior to 20.18.0, the XML-RPC / SOAP API session ID is generated using an outdated, time-based construction rather than a Cryptographically Secure Pseudo-Random Number Generator (CSPRNG). All inputs to the MD5 hash are time-derived and non-secure. Because the resulting digest relies entirely on the timestamp and the PHP internal LCG state, the effective entropy is severely constrained. This violates the OWASP ASVS v4 requirement of ≥ 64 bits of entropy (V3.2.2) and NIST SP 800-63B standards. By narrowing the LCG window (via server state leaks or general predictability) and leveraging the lack of API rate-limiting, an attacker can generate a localized pool of candidate MD5 hashes and execute a high-speed online brute-force attack to hijack active API sessions. This vulnerability is fixed in 20.18.0.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/OpenMage/magento-lts/security/… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| OpenMage | magento-lts |
Affected:
< 20.18.0
|
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CVE-2026-44054 (GCVE-0-2026-44054)
Vulnerability from cvelistv5 – Published: 2026-05-21 07:34 – Updated: 2026-05-21 12:38
VLAI
Title
Predictable afpd session token
Summary
Netatalk 2.0.0 through 4.4.2 generates AFP session tokens derived from predictable process IDs, which allows a remote authenticated attacker to cause a denial of service by exploiting the reconnect mechanism.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-330 - Use of Insufficiently Random Values
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://netatalk.io/security/CVE-2026-44054 | vendor-advisory |
Impacted products
Date Public
2026-05-13 00:00
Credits
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CVE-2026-7847 (GCVE-0-2026-7847)
Vulnerability from cvelistv5 – Published: 2026-05-05 16:30 – Updated: 2026-05-06 15:25
VLAI
Title
chatchat-space Langchain-Chatchat Uploaded File openai_routes.py _get_file_id random values
Summary
A vulnerability was found in chatchat-space Langchain-Chatchat up to 0.3.1.3. The affected element is the function _get_file_id of the file libs/chatchat-server/chatchat/server/api_server/openai_routes.py of the component Uploaded File Handler. Performing a manipulation results in insufficiently random values. Access to the local network is required for this attack. The attack's complexity is rated as high. The exploitability is described as difficult. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/361126 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/361126/cti | signaturepermissions-required |
| https://vuldb.com/submit/807796 | third-party-advisory |
| https://github.com/chatchat-space/Langchain-Chatc… | issue-tracking |
| https://github.com/3em0/cve_repo/blob/main/Langch… | exploit |
| https://github.com/chatchat-space/Langchain-Chatchat/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| chatchat-space | Langchain-Chatchat |
Affected:
0.3.1.0
Affected: 0.3.1.1 Affected: 0.3.1.2 Affected: 0.3.1.3 |
Credits
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Mitigation
Phase: Architecture and Design
Description:
- Use a well-vetted algorithm that is currently considered to be strong by experts in the field, and select well-tested implementations with adequate length seeds.
- In general, if a pseudo-random number generator is not advertised as being cryptographically secure, then it is probably a statistical PRNG and should not be used in security-sensitive contexts.
- Pseudo-random number generators can produce predictable numbers if the generator is known and the seed can be guessed. A 256-bit seed is a good starting point for producing a "random enough" number.
Mitigation
Phase: Implementation
Description:
- Consider a PRNG that re-seeds itself as needed from high quality pseudo-random output sources, such as hardware devices.
Mitigation ID: MIT-2
Phases: Architecture and Design, Requirements
Strategy: Libraries or Frameworks
Description:
- Use products or modules that conform to FIPS 140-2 [REF-267] to avoid obvious entropy problems. Consult FIPS 140-2 Annex C ("Approved Random Number Generators").
CAPEC-112: Brute Force
In this attack, some asset (information, functionality, identity, etc.) is protected by a finite secret value. The attacker attempts to gain access to this asset by using trial-and-error to exhaustively explore all the possible secret values in the hope of finding the secret (or a value that is functionally equivalent) that will unlock the asset.
CAPEC-485: Signature Spoofing by Key Recreation
An attacker obtains an authoritative or reputable signer's private signature key by exploiting a cryptographic weakness in the signature algorithm or pseudorandom number generation and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.
CAPEC-59: Session Credential Falsification through Prediction
This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.