How severe is CVE-2026-63041?

CVE-2026-63041 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-63041 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-63041?

CVE-2026-63041 affects Apache Apisix. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-63041?

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-2026-63041 published?

CVE-2026-63041 was published on 2026-08-26 and last updated on 2026-08-27.

CVE-2026-63041

CVE-2026-63041 is a high-severity vulnerability in Apache Apisix with a CVSS 3.x base score of 8.8. 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-807.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 5.3
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-807
Affected product: Apache Apisix
Published: 2026-08-26
Last modified: 2026-08-27

Description

Reliance on Untrusted Inputs in a Security Decision vulnerability in Apache APISIX. This vulnerability allows an attacker to escalate privilege or perform an authorization bypass by sending certain values that the attach-consumer-label plugin does not sanitise correctly. This issue affects Apache APISIX: from 3.11.0 through 3.17.0. Users are recommended to upgrade to version 3.18.0, which fixes the issue.

Frequently asked questions

What is CVE-2026-63041?: Reliance on Untrusted Inputs in a Security Decision vulnerability in Apache APISIX. This vulnerability allows an attacker to escalate privilege or perform an authorization bypass by sending certain values that the attach-consumer-label plugin does not sanitise correctly. This issue affects Apache APISIX: from 3.11.0 through 3.17.0. Users are recommended to upgrade to version 3.18.0, which fixes the issue.
How severe is CVE-2026-63041?: CVE-2026-63041 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-63041 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-63041?: CVE-2026-63041 affects Apache Apisix. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-63041?: 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-2026-63041 published?: CVE-2026-63041 was published on 2026-08-26 and last updated on 2026-08-27.

References

Affected products (1)

cpe:2.3:a:apache:apisix:*:*:*:*:*:*:*:*

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