How severe is CVE-2021-45327?

CVE-2021-45327 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-45327 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45327?

CVE-2021-45327 affects Gitea. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45327?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-45327 published?

CVE-2021-45327 was published on 2022-02-08 and last updated on 2026-06-17.

CVE-2021-45327

CVE-2021-45327 is a critical-severity vulnerability in Gitea with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-436.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-436
Affected product: Gitea
Published: 2022-02-08
Last modified: 2026-06-17

Description

Gitea before 1.11.2 is affected by Trusting HTTP Permission Methods on the Server Side when referencing the vulnerable admin or user API. which could let a remote malisious user execute arbitrary code.

Frequently asked questions

What is CVE-2021-45327?: Gitea before 1.11.2 is affected by Trusting HTTP Permission Methods on the Server Side when referencing the vulnerable admin or user API. which could let a remote malisious user execute arbitrary code.
How severe is CVE-2021-45327?: CVE-2021-45327 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-45327 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45327?: CVE-2021-45327 affects Gitea. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45327?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-45327 published?: CVE-2021-45327 was published on 2022-02-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*

More vulnerabilities in Gitea

CVE-2022-42968 — Critical (CVSS 9.8): Gitea before 1.17.3 does not sanitize and escape refs in the git backend. Arguments to git commands are mishandled.
CVE-2021-45331 — Critical (CVSS 9.8): An Authentication Bypass vulnerability exists in Gitea before 1.5.0, which could let a malicious user gain privileges.…
CVE-2021-45330 — Critical (CVSS 9.8): An issue exsits in Gitea through 1.15.7, which could let a malicious user gain privileges due to client side cookies…
CVE-2020-28991 — Critical (CVSS 9.8): Gitea 0.9.99 through 1.12.x before 1.12.6 does not prevent a git protocol path that specifies a TCP port number and…
CVE-2019-11576 — Critical (CVSS 9.8): Gitea before 1.8.0 allows 1FA for user accounts that have completed 2FA enrollment. If a user's credentials are known,…
CVE-2018-18926 — Critical (CVSS 9.8): Gitea before 1.5.4 allows remote code execution because it does not properly validate session IDs. This is related to…

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