CVE-2026-49231

Apache APISIX: Identity spoofing issue in APISIX opa plugin

MEDIUM
5.4
CVSS Score
Published: June 19, 2026 at 01:14 PM UTC
Updated: October 26, 2026 at 11:10 AM UTC
1 product affected across 1 vendorApisix

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

Authentication Bypass by Spoofing vulnerability in opa plugin. An attacker could relay spoofed identity headers to upstream capitalising on non-default configuration in opa plugin. This could allow the attacker to assume higher privileges on the upstream service. This issue affects Apache APISIX: from 3.5.0 through 3.16.0. Users are recommended to upgrade to version 3.17.0, which fixes the issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.5.0 ≤ v < 3.17.03.5.0
Affected range stops below 3.17.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Vendor AdvisoryMailing List
Source: cverecord
https://lists.apache.org/thread/s1jd1vxm59p6ghx47xhmpjdk1cobo4hn
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/06/19/13

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-290

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