CVE-2019-18823

HTCondor up to and including stable series 8.8.6 and development series 8.9.4 has Incorrect...

9.8 CriticalFix available

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)

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

2.81%Up 0.7 points since Apr 14, 2021

What each source reports

NVD Score used 9.8

Record: CVE-2019-18823
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-287
Updated: 2026-11-02

CVE List No score

Record: CVE-2019-18823
Updated: 2026-11-02

EUVDEUVD-2019-8525 No score

Record: EUVD-2019-8525
Updated: 2026-11-03

GitHub AdvisoriesGHSA-4w4f-pcxr-8ppr 9.8

HTCondor up to and including stable series 8.8.6 and development series 8.9.4 has Incorrect...

Record: GHSA-4w4f-pcxr-8ppr
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-200, CWE-287
Updated: 2026-11-02

OSV 9.8

Record: CVE-2019-18823
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2019-18823 9.8

Record: DEBIAN-CVE-2019-18823
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2019-18823 9.8

Record: UBUNTU-CVE-2019-18823
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`condor` Debian:13	before 23.2.0+dfsg-1	23.2.0+dfsg-1
`condor` Debian:14	before 23.2.0+dfsg-1	23.2.0+dfsg-1
`condor` Debian:9	before 8.4.11~dfsg.1-1+deb9u1, plus listed versions 8.4.11~dfsg.1-1	8.4.11~dfsg.1-1+deb9u1
`condor` Debian:10	before 8.6.8~dfsg.1-2+deb10u1, plus listed versions 8.6.8~dfsg.1-2	8.6.8~dfsg.1-2+deb10u1
`condor` Ubuntu:Pro:14.04:LTS	All versions, plus listed versions 7.8.8~dfsg.1-27.8.8~dfsg.1-2.18.0.5~dfsg.1-1ubuntu18.0.5~dfsg.1-1ubuntu1+esm1	None known
`condor` Ubuntu:Pro:16.04:LTS	All versions, plus listed versions 8.2.9~dfsg.1-18.4.2~dfsg.1-18.4.2~dfsg.1-1build18.4.2~dfsg.1-1ubuntu0.1~esm1	None known
`condor` Ubuntu:18.04:LTS	All versions, plus listed versions 8.4.11~dfsg.1-28.4.11~dfsg.1-38.6.8~dfsg.1-18.6.8~dfsg.1-2	None known
`condor` Ubuntu:20.04:LTS	All versions, plus listed versions 8.6.8~dfsg.1-2build18.6.8~dfsg.1-2ubuntu1	None known
`condor` Ubuntu:24.04:LTS	All versions, plus listed versions 23.2.0+dfsg-123.2.0+dfsg-223.4.0+dfsg-123.4.0+dfsg-1ubuntu223.4.0+dfsg-1ubuntu323.4.0+dfsg-1ubuntu423.4.0+dfsg-1ubuntu4.1	None known
`condor` Ubuntu:25.10	All versions, plus listed versions 23.6.2+dfsg-2build123.9.6+dfsg-223.9.6+dfsg-2build123.9.6+dfsg-2.123.9.6+dfsg-2.1build2	None known
`condor` Ubuntu:26.10	All versions, plus listed versions 25.6.1+dfsg-125.8.2+dfsg-125.10.1+dfsg-125.10.1+dfsg-225.11.0+dfsg-125.12.2+dfsg-1	None known
`condor` Ubuntu:26.04:LTS	All versions, plus listed versions 23.9.6+dfsg-2.1build225.6.1+dfsg-1	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-18823 is a critical vulnerability (CVSS 9.8) in Wisc Htcondor, published April 27, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.81%, the 86th percentile. Fixed in condor 23.2.0+dfsg-1.

References

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