CVE Explorer
CVE-2026-67550
re2 provides Node.js bindings for Google's RE2 regular expression engine. Prior to 1.25.2, re2 validates lastIndex against the UTF-8 byte length of a subject but uses it as a UTF-16 code-unit offset in exec, test, match, replace, and split, allowing an attacker-influenced lastIndex on a non-ASCII subject to trigger an out-of-bounds heap read and an uncatchable process crash, with limited heap information disclosure in some cases. This issue is fixed in 1.25.2.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"node-re2","vendor":"uhop","versions":[{"status":"affected","version":"< 1.25.2"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:3df3d486f2b7614b5a7bca3d2f5885c4f27d896ddb79c9b366fc991e6e5ee821 · sha256:43ab8f0e72e8d8fd… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.7,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:3df3d486f2b7614b5a7bca3d2f5885c4f27d896ddb79c9b366fc991e6e5ee821 · sha256:43ab8f0e72e8d8fd… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:3df3d486f2b7614b5a7bca3d2f5885c4f27d896ddb79c9b366fc991e6e5ee821 · sha256:43ab8f0e72e8d8fd… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/uhop/node-re2/commit/56293de4fc0914d7bc35f92e98de25b0d9bb417d","tags":["x_refsource_MISC"],"url":"https://github.com/uhop/node-re2/commit/56293de4fc0914d7bc35f92e98de25b0d9bb417d"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3df3d486f2b7614b5a7bca3d2f5885c4f27d896ddb79c9b366fc991e6e5ee821 · sha256:43ab8f0e72e8d8fd… · /containers/cna/references/1
{"name":"https://github.com/uhop/node-re2/releases/tag/1.25.2","tags":["x_refsource_MISC"],"url":"https://github.com/uhop/node-re2/releases/tag/1.25.2"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3df3d486f2b7614b5a7bca3d2f5885c4f27d896ddb79c9b366fc991e6e5ee821 · sha256:43ab8f0e72e8d8fd… · /containers/cna/references/2
{"name":"https://github.com/uhop/node-re2/security/advisories/GHSA-ff84-5f28-78qj","tags":["x_refsource_CONFIRM"],"url":"https://github.com/uhop/node-re2/security/advisories/GHSA-ff84-5f28-78qj"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3df3d486f2b7614b5a7bca3d2f5885c4f27d896ddb79c9b366fc991e6e5ee821 · sha256:43ab8f0e72e8d8fd… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/uhop/node-re2/security/advisories/GHSA-ff84-5f28-78qj"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3df3d486f2b7614b5a7bca3d2f5885c4f27d896ddb79c9b366fc991e6e5ee821 · sha256:43ab8f0e72e8d8fd… · /containers/adp/0/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.