CVE-2026-68499: CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') in uhop node-re2
CVE-2026-68499 is a vulnerability in the node-re2 package, which provides Node.js bindings for Google's RE2 regular expression engine. Versions prior to 1.25.2 have a flaw in the String.prototype.match implementation when using a global RE2 pattern that can match the empty string. This causes an infinite loop due to failure to advance the matching cursor, leading to unbounded native memory growth, blocking the event loop and potentially exhausting host memory. The issue is fixed in version 1.25.2.
AI Analysis
Technical Summary
The vulnerability in node-re2 affects versions before 1.25.2. When using a global RE2 pattern capable of matching an empty string, the native matching cursor in lib/match.cc does not advance properly during String.prototype.match calls. This results in an infinite loop and unbounded memory consumption at the native level, which blocks the Node.js event loop and can exhaust system memory. The problem is resolved in version 1.25.2.
Potential Impact
This vulnerability causes denial of service by blocking the Node.js event loop and consuming unbounded native memory, which can lead to host system memory exhaustion. There is no impact on confidentiality or integrity. The CVSS v3.1 score is 6.2 (medium severity) with the vector AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H indicating local attack vector and high impact on availability.
Mitigation Recommendations
A fix is available in node-re2 version 1.25.2. Users should upgrade to version 1.25.2 or later to resolve this issue. No other mitigations are indicated by the vendor advisory.
CVE-2026-68499: CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') in uhop node-re2
Description
CVE-2026-68499 is a vulnerability in the node-re2 package, which provides Node.js bindings for Google's RE2 regular expression engine. Versions prior to 1.25.2 have a flaw in the String.prototype.match implementation when using a global RE2 pattern that can match the empty string. This causes an infinite loop due to failure to advance the matching cursor, leading to unbounded native memory growth, blocking the event loop and potentially exhausting host memory. The issue is fixed in version 1.25.2.
CVSS v3.1
Score 6.2medium
Affected software
uhop
node-re2
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in node-re2 affects versions before 1.25.2. When using a global RE2 pattern capable of matching an empty string, the native matching cursor in lib/match.cc does not advance properly during String.prototype.match calls. This results in an infinite loop and unbounded memory consumption at the native level, which blocks the Node.js event loop and can exhaust system memory. The problem is resolved in version 1.25.2.
Potential Impact
This vulnerability causes denial of service by blocking the Node.js event loop and consuming unbounded native memory, which can lead to host system memory exhaustion. There is no impact on confidentiality or integrity. The CVSS v3.1 score is 6.2 (medium severity) with the vector AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H indicating local attack vector and high impact on availability.
Mitigation Recommendations
A fix is available in node-re2 version 1.25.2. Users should upgrade to version 1.25.2 or later to resolve this issue. No other mitigations are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-30T16:19:08.081Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6bb6459c2644c7f8a5d486
Added to database: 07/30/2026, 20:38:29 UTC
Last enriched: 08/07/2026, 14:39:03 UTC
Last updated: 09/13/2026, 22:01:36 UTC
Views: 1760
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