Read the docs
TI-2026-48273 Aliases CVE-2026-68499GHSA-6hxr-mr5r-9836

Infinite loop in uhop node-re2

Priority MEDIUM 61CWE-835Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-835.

Summary

re2 provides Node.js bindings for Google's RE2 regular expression engine. Prior to 1.25.2, re2's String.prototype.match implementation with a global RE2 pattern that can match the empty string fails to advance its native matching cursor in lib/match.cc, causing an infinite loop and unbounded native memory growth that blocks the event loop and can exhaust host memory. This issue is fixed in 1.25.2.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00184 8th percentileScored 2026-11-07
Fix Fixed node-re2 (uhop): 1.25.2re2 (npm): 1.25.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
uhopnode-re2before 1.25.21.25.2Patch availableCNA
—re2 (npm)before 1.25.21.25.2Patch availableGHSA-6hxr-mr5r-9836
  • node-re2 Vendoruhop Affected before 1.25.2 Fixed in 1.25.2 Patch available CNA
  • re2 (npm) Vendor— Affected before 1.25.2 Fixed in 1.25.2 Patch available GHSA-6hxr-mr5r-9836

Remediation

  • Fix · CNA node-re2 (uhop) Fixed in 1.25.2
  • Fix · GHSA-6hxr-mr5r-9836 re2 (npm) Fixed in 1.25.2 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-68499
  2. 2026-10-03 Alias added: GHSA-6hxr-mr5r-9836
  3. 2026-11-06 Affected versions changed · Red Hat
  4. 2026-11-06 CVSS score added · Red Hat

References

Advisory 1

Other 4

  • TI-2026-78913 Quadratic CPU use in stream-json FlexAssembler allows denial of service CVSS 3.1MEDIUM 6.2
  • TI-2026-65777 stream-json: JSONC parser and verifier re-scan the whole accumulated comment on every input chunk CVSS 3.1MEDIUM 6.2
  • TI-2026-50052 Reachable assertion in uhop node-re2 CVSS 3.1MEDIUM 6.2
  • TI-2026-50051 stream-json: pick/ignore/filter/replace filters are O(depth²) on nested input — small… CVSS 3.1MEDIUM 6.2
  • TI-2026-47734 Out-of-bounds read in uhop node-re2 CVSS 3.1MEDIUM 5.7
  • TI-2026-65778 stream-json: Prototype pollution: Assembler writes this.current[this.key] on plain objects CVSS 3.1MEDIUM 5.1
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences