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CVE-2020-13293

In GitLab before 13.0.12, 13.1.6 and 13.2.3 using a branch with a hexadecimal name could override...

6.3 MediumFix available

In GitLab before 13.0.12, 13.1.6 and 13.2.3 using a branch with a hexadecimal name could override an existing hash.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
Low

Exploit likelihood

1.04%Up 0.2 points since Apr 14, 2021
90%50%10%1%

What each source reports

CVE List Score used 6.3

In GitLab before 13.0.12, 13.1.6 and 13.2.3 using a branch with a hexadecimal name could override an existing hash.

Record
CVE-2020-13293
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L
Updated
2026-11-02
EUVDEUVD-2020-5553 6.3

In GitLab before 13.0.12, 13.1.6 and 13.2.3 using a branch with a hexadecimal name could override an existing hash.

Record
EUVD-2020-5553
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L
Updated
2026-11-03
GitHub AdvisoriesGHSA-6c6c-hp4f-xg67 No score

In GitLab before 13.0.12, 13.1.6 and 13.2.3 using a branch with a hexadecimal name could override...

In GitLab before 13.0.12, 13.1.6 and 13.2.3 using a branch with a hexadecimal name could override an existing hash.

Record
GHSA-6c6c-hp4f-xg67
Weakness
CWE-704
Updated
2026-11-02
NVD 6.3

In GitLab before 13.0.12, 13.1.6 and 13.2.3 using a branch with a hexadecimal name could override an existing hash.

Record
CVE-2020-13293
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L
CVSS 3.1
7.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
CVSS 2.0
5.5 MediumAV:N/AC:L/Au:S/C:N/I:P/A:P
Updated
2026-11-02
OSV 7.1

In GitLab before 13.0.12, 13.1.6 and 13.2.3 using a branch with a hexadecimal name could override an existing hash.

Record
CVE-2020-13293
CVSS 3.1
7.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Updated
2026-11-02
OSVUBUNTU-CVE-2020-13293 7.1

In GitLab before 13.0.12, 13.1.6 and 13.2.3 using a branch with a hexadecimal name could override an existing hash.

Record
UBUNTU-CVE-2020-13293
CVSS 3.1
7.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L
Updated
2026-11-02
OSVBIT-gitlab-2020-13293 No score

In GitLab before 13.0.12, 13.1.6 and 13.2.3 using a branch with a hexadecimal name could override an existing hash.

Record
BIT-gitlab-2020-13293
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
gitlab
Bitnami
 1.0.0 up to 13.0.12, 13.1.0 up to 13.1.6, 13.2.0 up to 13.2.3
13.0.1213.1.613.2.3
gitlab
Ubuntu:16.04:LTS
 All versions, plus listed versions
8.4.3+dfsg-98.4.3+dfsg-128.5.8+dfsg-5
 None known

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-2020-13293 is a medium vulnerability (CVSS 6.3) in Gitlab, published August 10, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.04%, the 64th percentile. Fixed in gitlab 13.0.12.

References

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