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 attacke...
CVE-2026-21717 is a vulnerability in the V8 JavaScript engine's string hashing mechanism where integer-like strings are hashed to their numeric values, making hash collisions predictable. This flaw allows an attacker to craft requests that cause numerous collisions in V8's internal string table. The vulnerability affects Microsoft products including Azure Linux versions 2. 0 and 3. 0. No known exploits are currently reported in the wild. There is no CVSS score or patch information available at this time.
AI Analysis
Technical Summary
The vulnerability in V8's string hashing causes integer-like strings to be hashed as their numeric values, leading to trivially predictable hash collisions. An attacker can exploit this by generating many such collisions in the internal string table of V8, potentially impacting the affected Microsoft products including Azure Linux 2.0 and 3.0. The vulnerability is categorized under CWE-328, indicating issues with cryptographic weaknesses or predictable hashing. No patch or remediation details are provided in the available data.
Potential Impact
The predictable hash collisions could allow an attacker to degrade performance or cause denial of service conditions by overwhelming the internal string table with collisions. However, no known exploits are reported, and the exact impact on confidentiality, integrity, or availability is not detailed in the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or workaround information is provided in the current data.
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 attacke...
Description
CVE-2026-21717 is a vulnerability in the V8 JavaScript engine's string hashing mechanism where integer-like strings are hashed to their numeric values, making hash collisions predictable. This flaw allows an attacker to craft requests that cause numerous collisions in V8's internal string table. The vulnerability affects Microsoft products including Azure Linux versions 2. 0 and 3. 0. No known exploits are currently reported in the wild. There is no CVSS score or patch information available at this time.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in V8's string hashing causes integer-like strings to be hashed as their numeric values, leading to trivially predictable hash collisions. An attacker can exploit this by generating many such collisions in the internal string table of V8, potentially impacting the affected Microsoft products including Azure Linux 2.0 and 3.0. The vulnerability is categorized under CWE-328, indicating issues with cryptographic weaknesses or predictable hashing. No patch or remediation details are provided in the available data.
Potential Impact
The predictable hash collisions could allow an attacker to degrade performance or cause denial of service conditions by overwhelming the internal string table with collisions. However, no known exploits are reported, and the exact impact on confidentiality, integrity, or availability is not detailed in the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or workaround information is provided in the current data.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-21717
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a1ca153e29bf47b505e07c3
Added to database: 5/31/2026, 9:00:03 PM
Last enriched: 5/31/2026, 9:00:32 PM
Last updated: 6/2/2026, 4:56:16 AM
Views: 10
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