MEDIUM
CVE-2026-49231
CWE-290Published: June 19, 2026· Updated: Jun 23, 2026
5.4
CVSS v3.1
Official 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.
Technical Analysis
CVE-2026-49231 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Affected Vendors & Products
Apache1 product
apisix
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (2)
→
https://lists.apache.org/thread/s1jd1vxm59p6ghx47xhmpjdk1cobo4hnVendor Advisory · Mailing List
→
http://www.openwall.com/lists/oss-security/2026/06/19/13Third Party Advisory
Quick Facts
CVE IDCVE-2026-49231
CVSS Score5.4 / 10
SeverityMEDIUM
WeaknessCWE-290
CISA KEVNo
Affected1 vendor
PublishedJun 19, 2026
Related CVEs (CWE-290)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-49231 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.