CVE-2026-21717
A flaw in V8's string hashing mechanism causes integer-like strings to be hashed to their numeric value, making hash collisions trivially pr
CVSS
5.9
Medium
EPSS
0.3%
p19
KEV
—
Exploit Today
6
0-100
Published: Mar 30, 2026 · Last modified: Aug 19, 2026 · CWE-328
0.3%EPSS · 30 days0.3%
2026-08-042026-08-31
A flaw in V8's string hashing mechanism causes integer-like strings to be hashed to their numeric value, making hash collisions trivially predictable. By crafting a request that causes many such collisions in V8's internal string table, an attacker can significantly degrade performance of the Node.js process. The most common trigger is any endpoint that calls `JSON.parse()` on attacker-controlled input, as JSON parsing automatically internalizes short strings into the affected hash table. This vulnerability affects **20.x, 22.x, 24.x, and 25.x**.
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-156053.1 LOW14.0%
——4A security vulnerability has been detected in wandb 0.25.2.dev1. Affected is the function ArtifactManifestEntry.download in the library wandb/sdk/lib/hashutil.py of the component Artifact Integrity Validation. The manipulation leads to use of weak hash. The attack may be initiated remotely. A high degree of complexity is needed for the attack. The exploitability is told to be difficult. The pull request to fix this issue awaits acceptance.50dCVE-2026-147423.1 LOW14.0%
——4A vulnerability was determined in langchain-ai langgraph up to 1.2.4. The affected element is the function _freeze of the file libs/langgraph/langgraph/_internal/_cache.py of the component Task Result Cache. This manipulation of the argument default_cache_key causes use of weak hash. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.57dCVE-2026-147383.7 LOW23.2%
——7A security flaw has been discovered in exo-explore exo up to 1.0.71. Affected is the function _image_cache_key of the file src/exo/worker/engines/mlx/vision.py of the component Vision Feature Cache. The manipulation results in use of weak hash. It is possible to launch the attack remotely. A high complexity level is associated with this attack. The exploitability is told to be difficult. The exploit has been released to the public and may be used for attacks. The pull request to fix this issue awaits acceptance.57dCVE-2026-146303.1 LOW14.0%
——4A vulnerability has been found in ForceInjection AI-fundermentals 2.0/3.0. Affected by this vulnerability is the function get_conversation_history of the file 08_agentic_system/memory/langchain/code/smart_customer_service.py of the component Memory Recall Handler. The manipulation leads to use of weak hash. Remote exploitation of the attack is possible. A high degree of complexity is needed for the attack. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The identifier of the patch is f57277fdd9ba373ace72d83c272023ec67f720d6. It is suggested to install a patch to address this issue. The project confirms (translated from Chinese): "We now require session ownership verification in methods such as `username`, `sessionowner`, etc., and we've chat()changed the generation of `sessionowner` to include verified user identity and security context metadata."57dCVE-2026-105405.6 MED1.2%
——0The Control-M/Enterprise Manager uses weak protections for stored hashes of account passwords, potentially allowing offline password recovery attacks if credential data is obtained by an attacker. This vulnerability affects Control-M/Enterprise Manager unsupported versions 9.0.20.x and potentially earlier unsupported versions62dCVE-2026-134554.3 MED8.5%
——3PostgreSQL Anonymizer contains a vulnerability that allows unprivileged masked users to repeatedly call the anon.hash() function and collects (seed, hash_output) pairs to perform an offline brute-force attack and deduce the salt. The problem is resolved in PostgreSQL Anonymizer 3.1.2 and later versions57d