Critical
condor — security advisory
HTCondor up to and including stable series 8.8.6 and development series 8.9.4 has Incorrect Access Control. It is possible to use a different authentication method to submit a job than the administrator has specified. If the administrator has configured the READ or WRITE methods to include CLAIMTOBE, then it is possible to impersonate another user to the condor_schedd. (For example to submit or remove jobs)
- Products
- condor
- Affected versions
- 23.2.0+dfsg-1, 23.2.0+dfsg-2, 23.4.0+dfsg-1, 23.4.0+dfsg-1ubuntu2, 23.4.0+dfsg-1ubuntu3, 23.4.0+dfsg-1ubuntu4, 23.4.0+dfsg-1ubuntu4.1, 23.6.2+dfsg-2build1, 23.9.6+dfsg-2, 23.9.6+dfsg-2.1, 23.9.6+dfsg-2.1build2, 23.9.6+dfsg-2build1, 25.10.1+dfsg-1, 25.10.1+dfsg-2, 25.11.0+dfsg-1, 25.12.2+dfsg-1, 25.6.1+dfsg-1, 25.8.2+dfsg-1, 7.8.8~dfsg.1-2, 7.8.8~dfsg.1-2.1, 8.0.5~dfsg.1-1ubuntu1, 8.0.5~dfsg.1-1ubuntu1+esm1, 8.2.9~dfsg.1-1, 8.4.11~dfsg.1-2, 8.4.11~dfsg.1-3, 8.4.2~dfsg.1-1, 8.4.2~dfsg.1-1build1, 8.4.2~dfsg.1-1ubuntu0.1~esm1, 8.6.8~dfsg.1-1, 8.6.8~dfsg.1-2, 8.6.8~dfsg.1-2build1, 8.6.8~dfsg.1-2ubuntu1
- Fixed versions
- Not specified
- CVEs
- CVE-2019-18823
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:50 UTC · Revision 1
Source evidence
HTCondor up to and including stable series 8.8.6 and development series 8.9.4 has Incorrect Access Control. It is possible to use a different authentication method to submit a job than the administrator has specified. If the administrator has configured the READ or WRITE methods to include CLAIMTOBE, then it is possible to impersonate another user to the condor_schedd. (For example to submit or remove jobs)
osv:UBUNTU-CVE-2019-18823
condor
Fixed versions: Not specified
condor
Fixed versions: Not specified
condor
Fixed versions: Not specified
condor
Fixed versions: Not specified
condor
Fixed versions: Not specified
condor
Fixed versions: Not specified
condor
Fixed versions: Not specified
condor
Fixed versions: Not specified
Complete source record
{
"id": "e58fdbdd9b44057dd7311aade8fc96ed55c95a5e748f6977956c67a2f1d6994f",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2019-18823",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2019-18823",
"summary": "HTCondor up to and including stable series 8.8.6 and development series 8.9.4 has Incorrect Access Control. It is possible to use a different authentication method to submit a job than the administrator has specified. If the administrator has configured the READ or WRITE methods to include CLAIMTOBE, then it is possible to impersonate another user to the condor_schedd. (For example to submit or remove jobs)",
"evidence": "osv:UBUNTU-CVE-2019-18823",
"products": [
{
"name": {
"value": "condor",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "7.8.8~dfsg.1-2",
"evidence": "/affected/0/versions"
},
{
"value": "7.8.8~dfsg.1-2.1",
"evidence": "/affected/0/versions"
},
{
"value": "8.0.5~dfsg.1-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "8.0.5~dfsg.1-1ubuntu1+esm1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "condor",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "8.2.9~dfsg.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "8.4.2~dfsg.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "8.4.2~dfsg.1-1build1",
"evidence": "/affected/1/versions"
},
{
"value": "8.4.2~dfsg.1-1ubuntu0.1~esm1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "condor",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "8.4.11~dfsg.1-2",
"evidence": "/affected/2/versions"
},
{
"value": "8.4.11~dfsg.1-3",
"evidence": "/affected/2/versions"
},
{
"value": "8.6.8~dfsg.1-1",
"evidence": "/affected/2/versions"
},
{
"value": "8.6.8~dfsg.1-2",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "condor",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "8.6.8~dfsg.1-2build1",
"evidence": "/affected/3/versions"
},
{
"value": "8.6.8~dfsg.1-2ubuntu1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "condor",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "23.2.0+dfsg-1",
"evidence": "/affected/4/versions"
},
{
"value": "23.2.0+dfsg-2",
"evidence": "/affected/4/versions"
},
{
"value": "23.4.0+dfsg-1",
"evidence": "/affected/4/versions"
},
{
"value": "23.4.0+dfsg-1ubuntu2",
"evidence": "/affected/4/versions"
},
{
"value": "23.4.0+dfsg-1ubuntu3",
"evidence": "/affected/4/versions"
},
{
"value": "23.4.0+dfsg-1ubuntu4",
"evidence": "/affected/4/versions"
},
{
"value": "23.4.0+dfsg-1ubuntu4.1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "condor",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "23.6.2+dfsg-2build1",
"evidence": "/affected/5/versions"
},
{
"value": "23.9.6+dfsg-2",
"evidence": "/affected/5/versions"
},
{
"value": "23.9.6+dfsg-2build1",
"evidence": "/affected/5/versions"
},
{
"value": "23.9.6+dfsg-2.1",
"evidence": "/affected/5/versions"
},
{
"value": "23.9.6+dfsg-2.1build2",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "condor",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "25.6.1+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "25.8.2+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "25.10.1+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "25.10.1+dfsg-2",
"evidence": "/affected/6/versions"
},
{
"value": "25.11.0+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "25.12.2+dfsg-1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "condor",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "23.9.6+dfsg-2.1build2",
"evidence": "/affected/7/versions"
},
{
"value": "25.6.1+dfsg-1",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "critical",
"structured": {
"id": "UBUNTU-CVE-2019-18823",
"aliases": [
"UBUNTU-CVE-2019-18823"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "condor",
"purl": "pkg:deb/ubuntu/condor?arch=source&distro=esm-infra-legacy%2Ftrusty",
"ecosystem": "Ubuntu:Pro:14.04:LTS"
},
"versions": [
"7.8.8~dfsg.1-2",
"7.8.8~dfsg.1-2.1",
"8.0.5~dfsg.1-1ubuntu1",
"8.0.5~dfsg.1-1ubuntu1+esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-18823.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "htcondor",
"binary_version": "8.0.5~dfsg.1-1ubuntu1+esm1"
},
{
"binary_name": "libclassad5",
"binary_version": "8.0.5~dfsg.1-1ubuntu1+esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "condor",
"purl": "pkg:deb/ubuntu/condor?arch=source&distro=esm-apps%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"8.2.9~dfsg.1-1",
"8.4.2~dfsg.1-1",
"8.4.2~dfsg.1-1build1",
"8.4.2~dfsg.1-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-18823.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "condor",
"binary_version": "8.4.2~dfsg.1-1ubuntu0.1~esm1"
},
{
"binary_name": "htcondor",
"binary_version": "8.4.2~dfsg.1-1ubuntu0.1~esm1"
},
{
"binary_name": "libclassad7",
"binary_version": "8.4.2~dfsg.1-1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "condor",
"purl": "pkg:deb/ubuntu/condor?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"8.4.11~dfsg.1-2",
"8.4.11~dfsg.1-3",
"8.6.8~dfsg.1-1",
"8.6.8~dfsg.1-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-18823.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "htcondor",
"binary_version": "8.6.8~dfsg.1-2"
},
{
"binary_name": "libclassad8",
"binary_version": "8.6.8~dfsg.1-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "condor",
"purl": "pkg:deb/ubuntu/condor?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"8.6.8~dfsg.1-2build1",
"8.6.8~dfsg.1-2ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-18823.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "htcondor",
"binary_version": "8.6.8~dfsg.1-2ubuntu1"
},
{
"binary_name": "libclassad8",
"binary_version": "8.6.8~dfsg.1-2ubuntu1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
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{
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}
]
}
],
"package": {
"name": "condor",
"purl": "pkg:deb/ubuntu/condor?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"23.2.0+dfsg-1",
"23.2.0+dfsg-2",
"23.4.0+dfsg-1",
"23.4.0+dfsg-1ubuntu2",
"23.4.0+dfsg-1ubuntu3",
"23.4.0+dfsg-1ubuntu4",
"23.4.0+dfsg-1ubuntu4.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-18823.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "condor",
"binary_version": "23.4.0+dfsg-1ubuntu4.1"
},
{
"binary_name": "condor-annex-ec2",
"binary_version": "23.4.0+dfsg-1ubuntu4.1"
},
{
"binary_name": "condor-kbdd",
"binary_version": "23.4.0+dfsg-1ubuntu4.1"
},
{
"binary_name": "condor-test",
"binary_version": "23.4.0+dfsg-1ubuntu4.1"
},
{
"binary_name": "condor-upgrade-checks",
"binary_version": "23.4.0+dfsg-1ubuntu4.1"
},
{
"binary_name": "condor-vm-gahp",
"binary_version": "23.4.0+dfsg-1ubuntu4.1"
},
{
"binary_name": "htcondor",
"binary_version": "23.4.0+dfsg-1ubuntu4.1"
},
{
"binary_name": "htcondor-annex-ec2",
"binary_version": "23.4.0+dfsg-1ubuntu4.1"
},
{
"binary_name": "htcondor-test",
"binary_version": "23.4.0+dfsg-1ubuntu4.1"
},
{
"binary_name": "htcondor-upgrade-checks",
"binary_version": "23.4.0+dfsg-1ubuntu4.1"
},
{
"binary_name": "minicondor",
"binary_version": "23.4.0+dfsg-1ubuntu4.1"
},
{
"binary_name": "minihtcondor",
"binary_version": "23.4.0+dfsg-1ubuntu4.1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "condor",
"purl": "pkg:deb/ubuntu/condor?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"23.6.2+dfsg-2build1",
"23.9.6+dfsg-2",
"23.9.6+dfsg-2build1",
"23.9.6+dfsg-2.1",
"23.9.6+dfsg-2.1build2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-18823.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "condor",
"binary_version": "23.9.6+dfsg-2.1build2"
},
{
"binary_name": "condor-annex-ec2",
"binary_version": "23.9.6+dfsg-2.1build2"
},
{
"binary_name": "condor-kbdd",
"binary_version": "23.9.6+dfsg-2.1build2"
},
{
"binary_name": "condor-test",
"binary_version": "23.9.6+dfsg-2.1build2"
},
{
"binary_name": "condor-upgrade-checks",
"binary_version": "23.9.6+dfsg-2.1build2"
},
{
"binary_name": "condor-vm-gahp",
"binary_version": "23.9.6+dfsg-2.1build2"
},
{
"binary_name": "htcondor",
"binary_version": "23.9.6+dfsg-2.1build2"
},
{
"binary_name": "htcondor-annex-ec2",
"binary_version": "23.9.6+dfsg-2.1build2"
},
{
"binary_name": "htcondor-test",
"binary_version": "23.9.6+dfsg-2.1build2"
},
{
"binary_name": "htcondor-upgrade-checks",
"binary_version": "23.9.6+dfsg-2.1build2"
},
{
"binary_name": "minicondor",
"binary_version": "23.9.6+dfsg-2.1build2"
},
{
"binary_name": "minihtcondor",
"binary_version": "23.9.6+dfsg-2.1build2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "condor",
"purl": "pkg:deb/ubuntu/condor?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"25.6.1+dfsg-1",
"25.8.2+dfsg-1",
"25.10.1+dfsg-1",
"25.10.1+dfsg-2",
"25.11.0+dfsg-1",
"25.12.2+dfsg-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-18823.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "condor",
"binary_version": "25.12.2+dfsg-1"
},
{
"binary_name": "condor-annex-ec2",
"binary_version": "25.12.2+dfsg-1"
},
{
"binary_name": "condor-kbdd",
"binary_version": "25.12.2+dfsg-1"
},
{
"binary_name": "condor-test",
"binary_version": "25.12.2+dfsg-1"
},
{
"binary_name": "condor-vm-gahp",
"binary_version": "25.12.2+dfsg-1"
},
{
"binary_name": "minicondor",
"binary_version": "25.12.2+dfsg-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "condor",
"purl": "pkg:deb/ubuntu/condor?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"23.9.6+dfsg-2.1build2",
"25.6.1+dfsg-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-18823.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "condor",
"binary_version": "25.6.1+dfsg-1"
},
{
"binary_name": "condor-annex-ec2",
"binary_version": "25.6.1+dfsg-1"
},
{
"binary_name": "condor-kbdd",
"binary_version": "25.6.1+dfsg-1"
},
{
"binary_name": "condor-test",
"binary_version": "25.6.1+dfsg-1"
},
{
"binary_name": "condor-vm-gahp",
"binary_version": "25.6.1+dfsg-1"
},
{
"binary_name": "minicondor",
"binary_version": "25.6.1+dfsg-1"
}
]
}
}
],
"modified": "2026-10-17T12:56:07.281870459Z",
"provider": "osv",
"upstream": [
"CVE-2019-18823"
],
"references": [
"https://ubuntu.com/security/CVE-2019-18823",
"https://research.cs.wisc.edu/htcondor/security/vulnerabilities/HTCONDOR-2020-0001.html",
"https://research.cs.wisc.edu/htcondor/security/vulnerabilities/HTCONDOR-2020-0002.html",
"https://research.cs.wisc.edu/htcondor/security/vulnerabilities/HTCONDOR-2020-0003.html",
"https://research.cs.wisc.edu/htcondor/security/vulnerabilities/HTCONDOR-2020-0004.html",
"https://github.com/htcondor/htcondor/commit/95eaee86e7ad3852c17df46a1b8b193dabd1fd14",
"https://github.com/htcondor/htcondor/commit/07e33c8b14aa00e04d045d4d79c963db082a3129",
"https://github.com/htcondor/htcondor/commit/cbcb93695a932d511c1c7bd40aed1eabeff01d8d",
"https://github.com/htcondor/htcondor/commit/3916209123a8ef762b7a9cd84ca0cf8b2cd99716",
"https://github.com/htcondor/htcondor/commit/5c84c6f0b3db4eda1eec42c2c708069bb9393f0b",
"https://www.cve.org/CVERecord?id=CVE-2019-18823"
]
},
"related_cves": [
{
"value": "CVE-2019-18823",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 354850,
"published_at": "2020-04-27T15:15:00+00:00"
}