CVE-2020-2305
XXE vulnerability in Jenkins Mercurial Plugin
6.5 MediumFix available
Jenkins Mercurial Plugin 2.11 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
1.49%Up 0.9 points since Apr 14, 2021
What each source reports
NVD Score used
Jenkins Mercurial Plugin 2.11 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.
- Record
CVE-2020-2305- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Updated
- 2026-11-02
CVE List No score
Jenkins Mercurial Plugin 2.11 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.
- Record
CVE-2020-2305- Updated
- 2026-11-02
EUVDEUVD-2022-5714 No score
Jenkins Mercurial Plugin 2.11 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.
- Record
EUVD-2022-5714- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x58r-wxc3-7pqr
XXE vulnerability in Jenkins Mercurial Plugin
Jenkins Mercurial Plugin prior to 2.12, 2.10.1, 2.9.1, and 2.8.1 does not configure its XML changelog parser to prevent XML external entity (XXE) attacks.
This allows attackers able to control an agent process to have Jenkins parse a crafted changelog file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.
Mercurial Plugin 2.12, 2.10.1, 2.9.1, and 2.8.1 disables external entity resolution for its XML parser.
- Record
GHSA-x58r-wxc3-7pqr- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-611
- Updated
- 2026-11-02
OSV
Jenkins Mercurial Plugin 2.11 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.
- Record
CVE-2020-2305- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVGHSA-x58r-wxc3-7pqr
XXE vulnerability in Jenkins Mercurial Plugin
Jenkins Mercurial Plugin prior to 2.12, 2.10.1, 2.9.1, and 2.8.1 does not configure its XML changelog parser to prevent XML external entity (XXE) attacks.
This allows attackers able to control an agent process to have Jenkins parse a crafted changelog file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.
Mercurial Plugin 2.12, 2.10.1, 2.9.1, and 2.8.1 disables external entity resolution for its XML parser.
- Record
GHSA-x58r-wxc3-7pqr- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-611
- Updated
- 2026-11-02
Show 4 moreShow less
OSVRHSA-2021:0034
Red Hat Security Advisory: OpenShift Container Platform 4.5.27 packages and security update
- Record
RHSA-2021:0034- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
OSVRHSA-2021:0038
Red Hat Security Advisory: OpenShift Container Platform 4.6.12 packages and security update
- Record
RHSA-2021:0038- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVRHSA-2021:0282
Red Hat Security Advisory: OpenShift Container Platform 4.4.33 packages and security update
- Record
RHSA-2021:0282- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVRHSA-2021:0637
Red Hat Security Advisory: OpenShift Container Platform 3.11.394 bug fix and security update
- Record
RHSA-2021:0637- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.jenkins-ci.plugins:mercurialMaven |
2.11 to 2.11 | 2.12 |
org.jenkins-ci.plugins:mercurialMaven |
2.10 to 2.10 | 2.10.1 |
org.jenkins-ci.plugins:mercurialMaven |
2.9 to 2.9 | 2.9.1 |
org.jenkins-ci.plugins:mercurialMaven |
before 2.8.1 | 2.8.1 |
org.jenkins-ci.plugins:mercurialMaven |
2.11 up to 2.12 | 2.12 |
org.jenkins-ci.plugins:mercurialMaven |
2.10 up to 2.10.1 | 2.10.1 |
org.jenkins-ci.plugins:mercurialMaven |
2.9 up to 2.9.1 | 2.9.1 |
org.jenkins-ci.plugins:mercurialMaven |
before 2.8.1, plus listed versions 1.371.381.391.401.41 Show 40 moreShow less1.421.431.441.451.461.471.481.48-beta-11.491.501.50-beta-11.50-beta-21.50.11.511.51-beta-11.51-beta-21.51-beta-31.521.531.541.551.561.571.581.58-beta-11.591.601.612.02.0-alpha-12.0-alpha-42.0-beta-12.12.22.32.42.52.62.72.8 |
2.8.1 |
jenkins-2-pluginsRed Hat:openshift:4.5::el7 From an advisory covering 7 CVEs |
before 0:4.5.1610108899-1.el7 | 0:4.5.1610108899-1.el7 |
python-urllib3Red Hat:openshift:4.5::el7 From an advisory covering 7 CVEs |
before 0:1.26.2-1.el7 | 0:1.26.2-1.el7 |
Show 19 moreShow less
| Package | Affected | Fixed |
|---|---|---|
python2-urllib3Red Hat:openshift:4.5::el7 From an advisory covering 7 CVEs |
before 0:1.26.2-1.el7 | 0:1.26.2-1.el7 |
jenkins-2-pluginsRed Hat:openshift:4.6::el7 From an advisory covering 7 CVEs |
before 0:4.6.1608634578-1.el7 | 0:4.6.1608634578-1.el7 |
jenkins-2-pluginsRed Hat:openshift:4.6::el8 From an advisory covering 7 CVEs |
before 0:4.6.1609853716-1.el8 | 0:4.6.1609853716-1.el8 |
openshiftRed Hat:openshift:4.6::el7 From an advisory covering 7 CVEs |
before 0:4.6.0-202012190744.p0.git.94235.c62c6f7.el7 | 0:4.6.0-202012190744.p0.git.94235.c62c6f7.el7 |
openshift-clientsRed Hat:openshift:4.6::el7 From an advisory covering 7 CVEs |
before 0:4.6.0-202012172338.p0.git.3800.30af700.el7 | 0:4.6.0-202012172338.p0.git.3800.30af700.el7 |
openshift-clients-redistributableRed Hat:openshift:4.6::el7 From an advisory covering 7 CVEs |
before 0:4.6.0-202012172338.p0.git.3800.30af700.el7 | 0:4.6.0-202012172338.p0.git.3800.30af700.el7 |
openshift-hyperkubeRed Hat:openshift:4.6::el7 From an advisory covering 7 CVEs |
before 0:4.6.0-202012190744.p0.git.94235.c62c6f7.el7 | 0:4.6.0-202012190744.p0.git.94235.c62c6f7.el7 |
cri-oRed Hat:openshift:4.6::el8 From an advisory covering 7 CVEs |
before 0:1.19.1-2.rhaos4.6.git2af9ecf.el8 | 0:1.19.1-2.rhaos4.6.git2af9ecf.el8 |
cri-o-debuginfoRed Hat:openshift:4.6::el8 From an advisory covering 7 CVEs |
before 0:1.19.1-2.rhaos4.6.git2af9ecf.el8 | 0:1.19.1-2.rhaos4.6.git2af9ecf.el8 |
cri-o-debugsourceRed Hat:openshift:4.6::el8 From an advisory covering 7 CVEs |
before 0:1.19.1-2.rhaos4.6.git2af9ecf.el8 | 0:1.19.1-2.rhaos4.6.git2af9ecf.el8 |
openshiftRed Hat:openshift:4.6::el8 From an advisory covering 7 CVEs |
before 0:4.6.0-202012190744.p0.git.94235.c62c6f7.el8 | 0:4.6.0-202012190744.p0.git.94235.c62c6f7.el8 |
openshift-clientsRed Hat:openshift:4.6::el8 From an advisory covering 7 CVEs |
before 0:4.6.0-202012172338.p0.git.3800.30af700.el8 | 0:4.6.0-202012172338.p0.git.3800.30af700.el8 |
openshift-clients-redistributableRed Hat:openshift:4.6::el8 From an advisory covering 7 CVEs |
before 0:4.6.0-202012172338.p0.git.3800.30af700.el8 | 0:4.6.0-202012172338.p0.git.3800.30af700.el8 |
openshift-hyperkubeRed Hat:openshift:4.6::el8 From an advisory covering 7 CVEs |
before 0:4.6.0-202012190744.p0.git.94235.c62c6f7.el8 | 0:4.6.0-202012190744.p0.git.94235.c62c6f7.el8 |
jenkins-2-pluginsRed Hat:openshift:4.4::el7 From an advisory covering 2 CVEs |
before 0:4.4.1611203637-1.el7 | 0:4.4.1611203637-1.el7 |
jenkinsRed Hat:openshift:3.11::el7 From an advisory covering 19 CVEs |
before 0:2.263.3.1612433584-1.el7 | 0:2.263.3.1612433584-1.el7 |
jenkins-2-pluginsRed Hat:openshift:3.11::el7 From an advisory covering 19 CVEs |
before 0:3.11.1612862361-1.el7 | 0:3.11.1612862361-1.el7 |
python-rsaRed Hat:openshift:3.11::el7 From an advisory covering 19 CVEs |
before 0:4.5-3.el7 | 0:4.5-3.el7 |
python2-rsaRed Hat:openshift:3.11::el7 From an advisory covering 19 CVEs |
before 0:4.5-3.el7 | 0:4.5-3.el7 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-2305 is a medium vulnerability (CVSS 6.5) in Jenkins Mercurial, published November 4, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.49%, the 74th percentile. Fixed in org.jenkins-ci.plugins:mercurial 2.12.
References
jenkins.io/security/advisory/2020-11-04
nvd.nist.gov/vuln/detail/CVE-2020-2305
github.com/CVEProject/cvelist/blob/381fe967666a5ce01625a7a050427aa4757e3ca6/2020/2xxx/CVE-2020-2305.json
Show 107 moreShow less
access.redhat.com/errata/RHSA-2021:0034
bugzilla.redhat.com/show_bug.cgi?id=1883632
security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_0034.json
cve.org/CVERecord?id=CVE-2020-2304
security.gentoo.org/glsa/202011-18