High
rhino — security advisory
Rhino is an open-source implementation of JavaScript written entirely in Java. Prior to 1.8.1, 1.7.15.1, and 1.7.14.1, when an application passed an attacker controlled float poing number into the toFixed() function, it might lead to high CPU consumption and a potential Denial of Service. Small numbers go through this call stack: NativeNumber.numTo > DToA.JS_dtostr > DToA.JS_dtoa > DToA.pow5mult where pow5mult attempts to raise 5 to a ridiculous power. This vulnerability is fixed in 1.8.1, 1.7.15.1, and 1.7.14.1.
- Products
- rhino
- Affected versions
- 1.7.14-2.1, 1.7.15-1, 1.7.15-1build1, 1.7.15.1-0.1, 1.7.7.1-1, 1.7.7.2-3, 1.7R4-3
- Fixed versions
- Not specified
- CVEs
- CVE-2025-66453
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:49 UTC · Revision 1
Source evidence
Rhino is an open-source implementation of JavaScript written entirely in Java. Prior to 1.8.1, 1.7.15.1, and 1.7.14.1, when an application passed an attacker controlled float poing number into the toFixed() function, it might lead to high CPU consumption and a potential Denial of Service. Small numbers go through this call stack: NativeNumber.numTo > DToA.JS_dtostr > DToA.JS_dtoa > DToA.pow5mult where pow5mult attempts to raise 5 to a ridiculous power. This vulnerability is fixed in 1.8.1, 1.7.15.1, and 1.7.14.1.
osv:UBUNTU-CVE-2025-66453
rhino
Fixed versions: Not specified
rhino
Fixed versions: Not specified
rhino
Fixed versions: Not specified
rhino
Fixed versions: Not specified
rhino
Fixed versions: Not specified
rhino
Fixed versions: Not specified
rhino
Fixed versions: Not specified
rhino
Fixed versions: Not specified
Complete source record
{
"id": "96370be9855f64305b1e8d56dff2e671dc8e8135832a1a74e40274c1446e96e9",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-66453",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2025-66453",
"summary": "Rhino is an open-source implementation of JavaScript written entirely in Java. Prior to 1.8.1, 1.7.15.1, and 1.7.14.1, when an application passed an attacker controlled float poing number into the toFixed() function, it might lead to high CPU consumption and a potential Denial of Service. Small numbers go through this call stack: NativeNumber.numTo > DToA.JS_dtostr > DToA.JS_dtoa > DToA.pow5mult where pow5mult attempts to raise 5 to a ridiculous power. This vulnerability is fixed in 1.8.1, 1.7.15.1, and 1.7.14.1.",
"evidence": "osv:UBUNTU-CVE-2025-66453",
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"severity": "high",
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"aliases": [
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"metrics": [
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},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
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{
"type": "Ubuntu",
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},
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"database_specific": {
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"modified": "2026-10-17T12:57:29.226360954Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2025-66453",
"https://www.cve.org/CVERecord?id=CVE-2025-66453",
"https://github.com/mozilla/rhino/security/advisories/GHSA-3w8q-xq97-5j7x"
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"source_id": "core-osv",
"document_id": 357592,
"published_at": "2025-12-03T20:16:00+00:00"
}