Critical
libjwt — security advisory
libjwt 1.15.3 uses strcmp (which is not constant time) to verify authentication, which makes it easier to bypass authentication via a timing side channel.
- Products
- libjwt
- Affected versions
- 1.10.2-1, 1.10.2-1build1, 1.17.0-2, 1.17.0-2build1, 1.17.0-2build2, 1.17.2-1, 1.17.2-1build1, 1.17.2-1build2, 1.8.0+dfsg-1, 1.8.0+dfsg-2, 1.9.0-1, 1.9.0-1build1
- Fixed versions
- Not specified
- CVEs
- CVE-2024-25189
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:07 UTC · Revision 1
Source evidence
libjwt 1.15.3 uses strcmp (which is not constant time) to verify authentication, which makes it easier to bypass authentication via a timing side channel.
osv:UBUNTU-CVE-2024-25189
libjwt
Fixed versions: Not specified
libjwt
Fixed versions: Not specified
libjwt
Fixed versions: Not specified
libjwt
Fixed versions: Not specified
libjwt
Fixed versions: Not specified
libjwt
Fixed versions: Not specified
libjwt
Fixed versions: Not specified
Complete source record
{
"id": "1b60709d2543a109306589f601448db515231c6ed50bbd1afd7885db12af69ce",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2024-25189",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2024-25189",
"summary": "libjwt 1.15.3 uses strcmp (which is not constant time) to verify authentication, which makes it easier to bypass authentication via a timing side channel.",
"evidence": "osv:UBUNTU-CVE-2024-25189",
"products": [
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},
{
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"evidence": "/affected/0/versions"
},
{
"value": "1.9.0-1",
"evidence": "/affected/0/versions"
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{
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{
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{
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"severity": "critical",
"structured": {
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"aliases": [
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"metrics": [
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"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
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{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
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{
"type": "Ubuntu",
"score": "medium"
}
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"affected": [
{
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"events": [
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},
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"1.8.0+dfsg-2",
"1.9.0-1",
"1.9.0-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-25189.json"
},
"ecosystem_specific": {
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"package": {
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},
"versions": [
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],
"database_specific": {
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},
"ecosystem_specific": {
"binaries": [
{
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{
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"package": {
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"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1.10.2-1",
"1.10.2-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-25189.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libjwt-gnutls0",
"binary_version": "1.10.2-1build1"
},
{
"binary_name": "libjwt0",
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}
]
}
},
{
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},
"ecosystem_specific": {
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},
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],
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},
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},
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],
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},
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{
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],
"modified": "2026-10-17T12:56:33.160250975Z",
"provider": "osv",
"upstream": [
"CVE-2024-25189"
],
"references": [
"https://ubuntu.com/security/CVE-2024-25189",
"https://github.com/P3ngu1nW/CVE_Request/blob/main/benmcollins%3Alibjwt.md",
"https://github.com/benmcollins/libjwt/commit/f73bac57c5bece16ac24f1a70022aa34355fc1bf",
"https://github.com/benmcollins/libjwt/commit/a5d61ef4f1b383876e0a78534383f38159471fd6",
"https://www.cve.org/CVERecord?id=CVE-2024-25189"
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},
"related_cves": [
{
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"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 355787,
"published_at": "2024-02-08T17:15:00+00:00"
}