Details of VAR-202606-3855

ID

VAR-202606-3855

CVE

CVE-2026-49231

TITLE

Apache Software Foundation of APISIX Spoofing authentication evasion vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2026-020998

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. 3.17.0 We recommend that you upgrade to .- Some of the information handled by the software may be leaked to external parties. - Some of the information handled by the software may be overwritten. - The software will not stop

Trust: 1.62

sources: NVD: CVE-2026-49231 // JVNDB: JVNDB-2026-020998

AFFECTED PRODUCTS

vendor:	apache	model:	apisix	scope:	gte	version:	3.5.0	Trust: 1.0
vendor:	apache	model:	apisix	scope:	lt	version:	3.17.0	Trust: 1.0
vendor:	apache	model:	apisix	scope:	eq	version:	3.5.0 that's all 3.17.0	Trust: 0.8
vendor:	apache	model:	apisix	scope:	eq	version:	-	Trust: 0.8
vendor:	apache	model:	apisix	scope:	-	version:	-	Trust: 0.8

sources: JVNDB: JVNDB-2026-020998 // NVD: CVE-2026-49231

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2026-49231
value:	MEDIUM
Trust: 1.0
security@apache.org:	CVE-2026-49231
value:	LOW
Trust: 1.0
NVD:	CVE-2026-49231
value:	MEDIUM
Trust: 0.8

nvd@nist.gov:	CVE-2026-49231
baseSeverity:	MEDIUM
baseScore:	5.4
vectorString:	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	LOW
integrityImpact:	LOW
availabilityImpact:	NONE
exploitabilityScore:	2.8
impactScore:	2.5
version:	3.1
Trust: 1.0
NVD:	CVE-2026-49231
baseSeverity:	MEDIUM
baseScore:	5.4
vectorString:	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	LOW
integrityImpact:	LOW
availabilityImpact:	NONE
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: JVNDB: JVNDB-2026-020998 // NVD: CVE-2026-49231 // NVD: CVE-2026-49231

PROBLEMTYPE DATA

problemtype:	CWE-290	Trust: 1.0
problemtype:	Avoid authentication by spoofing (CWE-290) [ others ]	Trust: 0.8

sources: JVNDB: JVNDB-2026-020998 // NVD: CVE-2026-49231

PATCH

title:

Apache APISIX

url:

https://lists.apache.org/thread/s1jd1vxm59p6ghx47xhmpjdk1cobo4hn

Trust: 0.8

sources: JVNDB: JVNDB-2026-020998

EXTERNAL IDS

db:	NVD	id:	CVE-2026-49231	Trust: 2.6
db:	OPENWALL	id:	OSS-SECURITY/2026/06/19/13	Trust: 1.0
db:	JVNDB	id:	JVNDB-2026-020998	Trust: 0.8

sources: JVNDB: JVNDB-2026-020998 // NVD: CVE-2026-49231

REFERENCES

url:	https://lists.apache.org/thread/s1jd1vxm59p6ghx47xhmpjdk1cobo4hn	Trust: 1.0
url:	http://www.openwall.com/lists/oss-security/2026/06/19/13	Trust: 1.0
url:	https://nvd.nist.gov/vuln/detail/cve-2026-49231	Trust: 0.8

sources: JVNDB: JVNDB-2026-020998 // NVD: CVE-2026-49231

SOURCES

db:	JVNDB	id:	JVNDB-2026-020998
db:	NVD	id:	CVE-2026-49231

LAST UPDATE DATE

2026-06-26T23:30:29.562000+00:00

SOURCES UPDATE DATE

db:	JVNDB	id:	JVNDB-2026-020998	date:	2026-06-26T02:56:00
db:	NVD	id:	CVE-2026-49231	date:	2026-06-23T15:18:30.250

SOURCES RELEASE DATE

db:	JVNDB	id:	JVNDB-2026-020998	date:	2026-06-26T00:00:00
db:	NVD	id:	CVE-2026-49231	date:	2026-06-19T14:16:23.543