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CVE-2020-10955

GitLab EE/CE 11.1 through 12.9 is vulnerable to parameter tampering on an upload feature that...

6.5 MediumFix available

GitLab EE/CE 11.1 through 12.9 is vulnerable to parameter tampering on an upload feature that allows an unauthorized user to read content available under specific folders.

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

1.03%Up 0.2 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.5

GitLab EE/CE 11.1 through 12.9 is vulnerable to parameter tampering on an upload feature that allows an unauthorized user to read content available under specific folders.

Record
CVE-2020-10955
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0
4.0 MediumAV:N/AC:L/Au:S/C:P/I:N/A:N
Weakness
CWE-862
Updated
2026-11-02
CVE List No score

GitLab EE/CE 11.1 through 12.9 is vulnerable to parameter tampering on an upload feature that allows an unauthorized user to read content available under specific folders.

Record
CVE-2020-10955
Updated
2026-11-02
EUVDEUVD-2020-3359 No score

GitLab EE/CE 11.1 through 12.9 is vulnerable to parameter tampering on an upload feature that allows an unauthorized user to read content available under specific folders.

Record
EUVD-2020-3359
Updated
2026-11-03
GitHub AdvisoriesGHSA-4hq6-hm84-9r6r 6.5

GitLab EE/CE 11.1 through 12.9 is vulnerable to parameter tampering on an upload feature that...

GitLab EE/CE 11.1 through 12.9 is vulnerable to parameter tampering on an upload feature that allows an unauthorized user to read content available under specific folders.

Record
GHSA-4hq6-hm84-9r6r
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-200, CWE-862
Updated
2026-11-02
OSV 6.5

GitLab EE/CE 11.1 through 12.9 is vulnerable to parameter tampering on an upload feature that allows an unauthorized user to read content available under specific folders.

Record
CVE-2020-10955
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVBIT-gitlab-2020-10955 No score

GitLab EE/CE 11.1 through 12.9 is vulnerable to parameter tampering on an upload feature that allows an unauthorized user to read content available under specific folders.

Record
BIT-gitlab-2020-10955
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
gitlab
Bitnami
11.1.0 up to 12.9.1
12.9.1

History

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

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

In short

CVE-2020-10955 is a medium vulnerability (CVSS 6.5) in Gitlab, published March 27, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.03%, the 64th percentile. Fixed in gitlab 12.9.1.

References

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