How severe is CVE-2021-3814?

CVE-2021-3814 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-3814 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3814?

CVE-2021-3814 affects Redhat 3scale. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3814?

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

When was CVE-2021-3814 published?

CVE-2021-3814 was published on 2022-03-25 and last updated on 2026-06-17.

CVE-2021-3814

CVE-2021-3814 is a high-severity vulnerability in Redhat 3scale with a CVSS 3.x base score of 7.5. 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-862.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Redhat 3scale
Published: 2022-03-25
Last modified: 2026-06-17

Description

It was found that 3scale's APIdocs does not validate the access token, in the case of invalid token, it uses session auth instead. This conceivably bypasses access controls and permits unauthorized information disclosure.

Frequently asked questions

What is CVE-2021-3814?: It was found that 3scale's APIdocs does not validate the access token, in the case of invalid token, it uses session auth instead. This conceivably bypasses access controls and permits unauthorized information disclosure.
How severe is CVE-2021-3814?: CVE-2021-3814 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-3814 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3814?: CVE-2021-3814 affects Redhat 3scale. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3814?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-3814 published?: CVE-2021-3814 was published on 2022-03-25 and last updated on 2026-06-17.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2004322

Affected products (1)

cpe:2.3:a:redhat:3scale:*:*:*:*:*:*:*:*

More vulnerabilities in Redhat 3scale

CVE-2019-14836 — High (CVSS 8.8): A vulnerability was found that the 3scale dev portal does not employ mechanisms for protection against login CSRF. An…
CVE-2021-3412 — High (CVSS 7.3): It was found that all versions of 3Scale developer portal lacked brute force protections. An attacker could use this…
CVE-2021-3752 — High (CVSS 7.1): A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls connect to the socket…
CVE-2024-0560 — Medium (CVSS 6.3): A vulnerability was found in 3Scale, when used with Keycloak 15 (or RHSSO 7.5.0) and superiors. When the auth_type is…
CVE-2020-10711 — Medium (CVSS 5.9): A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw…
CVE-2020-25634 — Medium (CVSS 5.4): A flaw was found in Red Hat 3scale’s API docs URL, where it is accessible without credentials. This flaw allows an…

All CVEs affecting Redhat 3scale →

Other CWE-862 (Missing Authorization) vulnerabilities

CVE-2026-101000 — Critical (CVSS 10.0): A vulnerability was determined in Netcore NBR100V2 1.3.240614.030928. This affects the function uci.apply of the file…
CVE-2026-97360 — Critical (CVSS 10.0): HFS2 version 2.4.0 and earlier contains an unauthenticated arbitrary file access vulnerability that allows…
CVE-2026-65381 — Critical (CVSS 10.0): A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the…
CVE-2026-81648 — Critical (CVSS 10.0): The CryptoPayment Gateway WordPress plugin from 1.2.1 to 1.2.2 does not apply an authorization check on one of its AJAX…
CVE-2026-77770 — Critical (CVSS 10.0): The miniOrange 2FA WordPress plugin before 6.3.1, miniOrange 2FA WordPress plugin before 19.3 does not require a…
CVE-2026-65667 — Critical (CVSS 10.0): Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-862 (Missing Authorization) vulnerabilities →