UBUNTU-CVE-2026-104988 (CVE-2026-104988)
Vulnerability from osv_ubuntu – Published: 2026-10-05 00:00 – Updated: 2026-10-05 00:00 – Source website
VLAI
Details
A flaw was found in Dogtag PKI (pki-core). The CMCAuthForEST authentication plugin fails open when an EST fullcmc enrollment request is submitted via BasicAuth without an end-user TLS client certificate. The SSL_CLIENT_CERT session attribute retains the EST subsystem's agent certificate, which causes downstream authorization checks to treat the request as agent-privileged. An authenticated EST user can exploit this to obtain CA-signed certificates with arbitrary subject names.
Severity
8.1 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "dogtag-pki",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
},
{
"binary_name": "dogtag-pki-console-theme",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
},
{
"binary_name": "dogtag-pki-server-theme",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
},
{
"binary_name": "libsymkey-java",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
},
{
"binary_name": "libsymkey-jni",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-base",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-ca",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-console",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-javadoc",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-kra",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-ocsp",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-server",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-tks",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-tools",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-tps",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-tps-client",
"binary_version": "10.2.6+git20160317-1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "dogtag-pki",
"purl": "pkg:deb/ubuntu/dogtag-pki@10.2.6+git20160317-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"10.2.6-1",
"10.2.6-2",
"10.2.6-3",
"10.2.6+git20160317-1",
"10.2.6+git20160317-1ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "dogtag-pki",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "dogtag-pki-console-theme",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "dogtag-pki-server-theme",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "libsymkey-java",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "libsymkey-jni",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "pki-base",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "pki-base-java",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "pki-ca",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "pki-console",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "pki-javadoc",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "pki-kra",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "pki-ocsp",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "pki-server",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "pki-tks",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "pki-tools",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "pki-tps",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "pki-tps-client",
"binary_version": "10.6.0-1ubuntu2+esm1"
},
{
"binary_name": "python3-pki-base",
"binary_version": "10.6.0-1ubuntu2+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "dogtag-pki",
"purl": "pkg:deb/ubuntu/dogtag-pki@10.6.0-1ubuntu2+esm1?arch=source\u0026distro=esm-apps/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"10.3.5+12-4ubuntu1",
"10.3.5+12-5",
"10.5.3-3",
"10.5.3-4",
"10.5.5-1",
"10.6.0~beta2-3",
"10.6.0-1ubuntu1",
"10.6.0-1ubuntu2",
"10.6.0-1ubuntu2+esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "dogtag-pki",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "dogtag-pki-console-theme",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "dogtag-pki-server-theme",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "libsymkey-java",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "libsymkey-jni",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "pki-base",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "pki-base-java",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "pki-ca",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "pki-console",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "pki-javadoc",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "pki-kra",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "pki-ocsp",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "pki-server",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "pki-tks",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "pki-tools",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "pki-tps",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "pki-tps-client",
"binary_version": "10.8.3-1ubuntu1+esm1"
},
{
"binary_name": "python3-pki-base",
"binary_version": "10.8.3-1ubuntu1+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "dogtag-pki",
"purl": "pkg:deb/ubuntu/dogtag-pki@10.8.3-1ubuntu1+esm1?arch=source\u0026distro=esm-apps/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"10.7.3-4",
"10.8.3-1ubuntu1",
"10.8.3-1ubuntu1+esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "dogtag-pki",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "dogtag-pki-console-theme",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "dogtag-pki-server-theme",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "libsymkey-java",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "libsymkey-jni",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-base",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-base-java",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-ca",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-console",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-javadoc",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-kra",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-ocsp",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-server",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-tks",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-tools",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-tps",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "pki-tps-client",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
},
{
"binary_name": "python3-pki-base",
"binary_version": "11.0.0-1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "dogtag-pki",
"purl": "pkg:deb/ubuntu/dogtag-pki@11.0.0-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"10.10.2-3build1",
"11.0.0-1",
"11.0.0-1ubuntu0.1~esm1"
]
}
],
"aliases": [],
"details": "A flaw was found in Dogtag PKI (pki-core). The CMCAuthForEST authentication plugin fails open when an EST fullcmc enrollment request is submitted via BasicAuth without an end-user TLS client certificate. The SSL_CLIENT_CERT session attribute retains the EST subsystem\u0027s agent certificate, which causes downstream authorization checks to treat the request as agent-privileged. An authenticated EST user can exploit this to obtain CA-signed certificates with arbitrary subject names.",
"id": "UBUNTU-CVE-2026-104988",
"modified": "2026-10-05T00:00:00Z",
"published": "2026-10-05T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-104988"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-104988"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-104988"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2545316"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-104988"
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…