Every CVE Search/ Get API key

CVE-2019-12300

Improper Authentication in Buildbot

9.8 CriticalFix available

Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token from OAuth and uses it to authenticate a user. If an attacker has a token allowing them to read the user details of a victim, they can login as the victim.

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

1.84%Up 1.0 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 9.8

Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token from OAuth and uses it to authenticate a user. If an attacker has a token allowing them to read the user details of a victim, they can login as the victim.

Record
CVE-2019-12300
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-287
Updated
2026-11-02
CVE List No score

Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token from OAuth and uses it to authenticate a user. If an attacker has a token allowing them to read the user details of a victim, they can login as the victim.

Record
CVE-2019-12300
Updated
2026-11-02
EUVDEUVD-2019-0025 No score

Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token from OAuth and uses it to authenticate a user. If an attacker has a token allowing them to read the user details of a victim, they can login as the victim.

Record
EUVD-2019-0025
Updated
2026-11-03
GitHub AdvisoriesGHSA-g86p-hgx5-2pfh 9.3

Improper Authentication in Buildbot

Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token from OAuth and uses it to authenticate a user. If an attacker has a token allowing them to read the user details of a victim, they can login as the victim.

Record
GHSA-g86p-hgx5-2pfh
CVSS 4.0
9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-287
Updated
2026-11-02
OSV 9.8

Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token from OAuth and uses it to authenticate a user. If an attacker has a token allowing them to read the user details of a victim, they can login as the victim.

Record
CVE-2019-12300
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2019-12300 9.8

Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token from OAuth and uses it to authenticate a user. If an attacker has a token allowing them to read the user details of a victim, they can login as the victim.

Record
DEBIAN-CVE-2019-12300
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVGHSA-g86p-hgx5-2pfh 9.3

Improper Authentication in Buildbot

Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token from OAuth and uses it to authenticate a user. If an attacker has a token allowing them to read the user details of a victim, they can login as the victim.

Record
GHSA-g86p-hgx5-2pfh
CVSS 4.0
9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-287
Updated
2026-11-02
OSVUBUNTU-CVE-2019-12300 9.8

Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token from OAuth and uses it to authenticate a user. If an attacker has a token allowing them to read the user details of a victim, they can login as the victim.

Record
UBUNTU-CVE-2019-12300
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVPYSEC-2019-6 No score

Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token from OAuth and uses it to authenticate a user. If an attacker has a token allowing them to read the user details of a victim, they can login as the victim.

Record
PYSEC-2019-6
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
buildbot
PyPI
 before 1.8.2
1.8.2
buildbot
PyPI
 2.0.0 up to 2.3.1
2.3.1
buildbot
Debian:12
 before 2.0.1-2
2.0.1-2
buildbot
Debian:13
 before 2.0.1-2
2.0.1-2
buildbot
Debian:14
 before 2.0.1-2
2.0.1-2
buildbot
PyPI
 before 1.8.2, plus listed versions
0.7.100.7.10p10.7.110.7.11p10.7.11p2
Show 45 moreShow less
0.7.11p30.7.120.7.30.7.50.7.60.7.70.7.80.7.90.8.00.8.10.8.100.8.120.8.130.8.140.8.1p10.8.20.8.30.8.3p10.8.40.8.4p10.8.4p20.8.50.8.60.8.6p10.8.70.8.7p10.8.80.8.90.9.00.9.0.post10.9.0b10.9.0b20.9.0b30.9.0b40.9.0b50.9.0b60.9.0b70.9.0b80.9.0b90.9.0rc10.9.0rc20.9.0rc30.9.0rc40.9.10.9.10
1.8.2
buildbot
PyPI
 2.0.0 up to 2.3.1, plus listed versions
2.0.12.1.02.2.02.3.0
2.3.1
buildbot
PyPI
 before 1.8.2, 2.0.1 up to 2.3.1, plus listed versions
0.7.10p10.7.11p10.7.11p20.7.11p30.8.1p1
Show 45 moreShow less
0.8.3p10.8.4p10.8.4p20.8.6p10.8.7p10.7.30.7.50.7.60.7.70.7.80.7.90.7.100.7.110.7.120.8.00.8.10.8.20.8.30.8.40.8.50.8.60.8.70.8.80.8.90.8.100.8.120.8.130.8.140.9.0b10.9.0b20.9.0b30.9.0b40.9.0b50.9.0b60.9.0b70.9.0b80.9.0b90.9.0rc10.9.0rc20.9.0rc30.9.0rc40.9.00.9.0.post10.9.10.9.2
1.8.22.3.1
buildbot
Ubuntu:18.04:LTS
 All versions, plus listed versions
0.8.12-3.2ubuntu21.1.1-3ubuntu41.1.1-3ubuntu5
 None known
buildbot
Ubuntu:20.04:LTS
 before 2.3.1-1
2.3.1-1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2019-12300 is a critical vulnerability (CVSS 9.8) in Buildbot, published May 23, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.84%, the 79th percentile. Fixed in buildbot 1.8.2.

References

Show 6 moreShow less
This page doesn't list everything

Left out here: 59 versions. The JSON record has them.

Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open