CWE-338（Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)）描述一種在漏洞資料庫與安全評估中使用的弱點類型；定義、背景與對應 CVE 見下方各節。
The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong.
| 類型 | 名稱 | 類 | 普遍性 | OS / CPE |
|---|---|---|---|---|
| language | — | Not Language-Specific | Undetermined | — |
| technology | — | Not Technology-Specific | Undetermined | — |
下列 CVE 在本庫中對應到該弱點，並保留以便追溯與檢索。
| CVE | 公開時間 | 摘要 |
|---|---|---|
| CVE-2026-64798 | 2026-07-22 | Persistent URL login keys were also generated using a non-cryptographic random generator with insufficient entropy. |
| CVE-2026-16615 | 2026-07-22 | A flaw was found in librest. The PKCE implementation for OAuth authorization uses the GRand function from the GLib API, a cryptographically insecure pseudo-random number generator. Because the generat… |
| CVE-2026-8169 | 2026-07-20 | ExtremeXOS (EXOS) uses a challenge-response mechanism to authorize access to the privileged debug-mode function. The challenge value is generated using an insufficiently random source, which under cer… |
| CVE-2026-13577 | 2026-07-20 | Dancer2 versions through 2.1.0 for Perl generate insecure session ids when required CSPRNG modules are unavailable. Dancer2::Core::Role::SessionFactory::generate_id silently falls back to a built-in … |
| CVE-2026-16235 | 2026-07-20 | Crypt::Password versions through 0.28 for Perl generate insecure random values for salts. These versions use the built-in rand function, which is predictable and unsuitable for cryptography. |
| CVE-2026-9323 | 2026-07-18 | The urwid web display backend (urwid/display/web.py) generates web session identifiers (urwid_id) in Screen.start() by concatenating two random.randrange(10**9) calls that use Python's Mersenne Twiste… |
| CVE-2026-13082 | 2026-07-17 | GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets. The random method creates the challenge text used for the CAPTCHA by sampling characters from an array using Perl's buil… |
| CVE-2026-63089 | 2026-07-16 | WireGuard Easy through 15.3.0, fixed in commit 66b292b, contains a cryptographically weak one-time link token generation vulnerability that allows unauthenticated network attackers to recover WireGuar… |
| CVE-2026-61500 | 2026-07-13 | Rejetto HFS 3.0.0 through 3.2.0 derives its session-cookie signing key from the non-cryptographic Math.random() generator and discloses outputs of the same generator to unauthenticated clients during … |
| CVE-2026-14495 | 2026-07-08 | The DoLogin Security plugin for WordPress is vulnerable to Authentication Bypass via Insufficient Randomness in all versions up to, and including, 4.3. The vulnerability exists because `dologin\s::rra… |
| CVE-2026-56016 | 2026-07-01 | CGI::Session::ID::md5 versions before 4.49 for Perl generate predictable session ids from low-entropy sources. The generate_id method builds the session id from a MD5 digest of the process id, the ep… |
| CVE-2026-7830 | 2026-07-01 | UltraVNC through 1.8.2.2 uses inadequate cryptography in the MS-Logon II authentication scheme (rfbUltraVNC_MsLogonIIAuth). In rfb/dh.cpp the Diffie-Hellman key exchange is performed with parameters t… |
| CVE-2026-44040 | 2026-07-01 | UltraVNC through 1.8.2.2 uses a cryptographically weak pseudo-random number generator to produce VNC authentication challenge bytes. In rfb/vncauth.c:119-129, the vncRandomBytes() function seeds libc … |
| CVE-2026-7874 | 2026-06-30 | IBM Langflow OSS 1.0.0 through 1.10.0 Langflow could allow disclosure of all stored credentials due to the use of a weak and reversible key derivation mechanism for encryption at rest. |
| CVE-2026-57082 | 2026-06-30 | Net::BitTorrent versions before 2.1.0 for Perl generate the MSE Diffie-Hellman private key with a non-cryptographic PRNG. The MSE (Message Stream Encryption) handshake derives its 160-bit Diffie-Hell… |
| CVE-2026-9733 | 2026-06-23 | Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter. When no state generator is specified in the constructor, the module defaults to using a… |
| CVE-2026-56141 | 2026-06-19 | In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429 account takeover via predictable restore codes was possible |
| CVE-2026-9692 | 2026-06-18 | Mojolicious::Sessions::Storable versions through 0.05 for Perl generate session ids insecurely. The default session id generator returns a SHA-1 hash seeded with the built-in rand function, the epoch… |
| CVE-2026-11832 | 2026-06-15 | Dancer2::Plugin::Auth::OAuth versions before 0.22 for Perl default to a predictable nonce. The default nonce was generated using an MD5 hash of the epoch time, which is predictable. |
| CVE-2026-9638 | 2026-06-12 | Crypt::PBKDF2 versions before 0.261630 for Perl generate insecure random values for salts. These versions use the built-in rand function, which is predictable and unsuitable for cryptography. |
| 日期 | 名稱 | 版本 | 重要性 | 評論 |
|---|---|---|---|---|
| 2008-07-01 | Eric Dalci | 1.0 | — | updated Time_of_Introduction |
| 2008-09-08 | CWE Content Team | 1.0 | — | updated Common_Consequences, Relationships, Other_Notes, Taxonomy_Mappings |
| 2011-06-01 | CWE Content Team | 1.13 | — | updated Common_Consequences |
| 2012-05-11 | CWE Content Team | 2.2 | — | updated Common_Consequences, Observed_Examples, References, Relationships |
| 2012-10-30 | CWE Content Team | 2.3 | — | updated Demonstrative_Examples, Potential_Mitigations |
| 2014-06-23 | CWE Content Team | 2.7 | — | updated Applicable_Platforms, Description, Name, Other_Notes |
| 2015-12-07 | CWE Content Team | 2.9 | — | updated Relationships |
| 2017-11-08 | CWE Content Team | 3.0 | — | updated Demonstrative_Examples, Description, Modes_of_Introduction, Relationships, Taxonomy_Mappings |
| 2019-01-03 | CWE Content Team | 3.2 | — | updated Relationships |
| 2020-02-24 | CWE Content Team | 4.0 | — | updated References, Relationships |
| 2021-03-15 | CWE Content Team | 4.4 | — | updated Demonstrative_Examples |
| 2021-07-20 | CWE Content Team | 4.5 | — | updated Maintenance_Notes |
| 2021-10-28 | CWE Content Team | 4.6 | — | updated Relationships |
| 2023-04-27 | CWE Content Team | 4.11 | — | updated Detection_Factors, Relationships |
| 2023-06-29 | CWE Content Team | 4.12 | — | updated Mapping_Notes |
| 2023-10-26 | CWE Content Team | 4.13 | — | updated Observed_Examples |
| 2025-12-11 | CWE Content Team | 4.19 | — | updated Applicable_Platforms, Relationships, Weakness_Ordinalities |