High
php-lcobucci-jwt — security advisory
jwt v5.4.3 was discovered to contain weak encryption. NOTE: this issue has been disputed on the basis that key lengths are expected to be set by an application, not by this library. This dispute is subject to review under CNA rules 4.1.4, 4.1.14, and other rules; the dispute tagging is not meant to recommend an outcome for this CVE Record.
- Products
- php-lcobucci-jwt
- Affected versions
- 5.2.0-1, 5.5.0-1, 5.6.0-1
- Fixed versions
- Not specified
- CVEs
- CVE-2025-45770
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:28 UTC · Revision 1
Source evidence
jwt v5.4.3 was discovered to contain weak encryption. NOTE: this issue has been disputed on the basis that key lengths are expected to be set by an application, not by this library. This dispute is subject to review under CNA rules 4.1.4, 4.1.14, and other rules; the dispute tagging is not meant to recommend an outcome for this CVE Record.
osv:UBUNTU-CVE-2025-45770
php-lcobucci-jwt
Fixed versions: Not specified
php-lcobucci-jwt
Fixed versions: Not specified
php-lcobucci-jwt
Fixed versions: Not specified
php-lcobucci-jwt
Fixed versions: Not specified
Complete source record
{
"id": "6d768e16848b546fcd176ac8c7d22880d453f3bac048849ecbf5a3931c54c2fa",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-45770",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2025-45770",
"summary": "jwt v5.4.3 was discovered to contain weak encryption. NOTE: this issue has been disputed on the basis that key lengths are expected to be set by an application, not by this library. This dispute is subject to review under CNA rules 4.1.4, 4.1.14, and other rules; the dispute tagging is not meant to recommend an outcome for this CVE Record.",
"evidence": "osv:UBUNTU-CVE-2025-45770",
"products": [
{
"name": {
"value": "php-lcobucci-jwt",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.2.0-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "php-lcobucci-jwt",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.5.0-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "php-lcobucci-jwt",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.6.0-1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "php-lcobucci-jwt",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.5.0-1",
"evidence": "/affected/3/versions"
},
{
"value": "5.6.0-1",
"evidence": "/affected/3/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2025-45770",
"aliases": [
"UBUNTU-CVE-2025-45770"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
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"purl": "pkg:deb/ubuntu/php-lcobucci-jwt?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"5.2.0-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-45770.json"
},
"ecosystem_specific": {
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{
"binary_name": "php-lcobucci-jwt",
"binary_version": "5.2.0-1"
}
]
}
},
{
"ranges": [
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"package": {
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"purl": "pkg:deb/ubuntu/php-lcobucci-jwt?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
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],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-45770.json"
},
"ecosystem_specific": {
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]
}
},
{
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"package": {
"name": "php-lcobucci-jwt",
"purl": "pkg:deb/ubuntu/php-lcobucci-jwt?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"5.6.0-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-45770.json"
},
"ecosystem_specific": {
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"binary_version": "5.6.0-1"
}
]
}
},
{
"ranges": [
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],
"package": {
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"purl": "pkg:deb/ubuntu/php-lcobucci-jwt?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
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"5.6.0-1"
],
"database_specific": {
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},
"ecosystem_specific": {
"binaries": [
{
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"binary_version": "5.6.0-1"
}
]
}
}
],
"modified": "2026-10-17T12:56:52.194074232Z",
"provider": "osv",
"upstream": [
"CVE-2025-45770"
],
"references": [
"https://ubuntu.com/security/CVE-2025-45770",
"https://www.cve.org/CVERecord?id=CVE-2025-45770",
"https://github.com/lcobucci/jwt/security/advisories/GHSA-rp3h-65jh-3c3m",
"https://gist.github.com/ZupeiNie/cd88c827eef11a1618f8baacccd240fb",
"https://github.com/lcobucci",
"https://github.com/lcobucci/jwt"
]
},
"related_cves": [
{
"value": "CVE-2025-45770",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 356484,
"published_at": "2025-07-31T20:15:00+00:00"
}