Details of VAR-202606-4138

ID

VAR-202606-4138

CVE

CVE-2026-49871

TITLE

Apache Software Foundation of APISIX Cross-site request forgery vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2026-020993

DESCRIPTION

Cross-Site Request Forgery (CSRF) vulnerability in the cas-auth plugin under default configurations. This defect allows a remote attacker that manages to send a victim to a webpage controlled by them can cause the victim's browser to become authenticated as a different identity. Actions the victim takes upstream are then attributed to attackers identity. This issue affects Apache APISIX: from 3.0.0 through 3.16.0. Users are recommended to upgrade to version 3.17.0, which fixes the issue. ID It may be authenticated as such. ID This will be attributed to [the relevant party]. 3.17.0 We recommend upgrading to .- All information handled by the software may be leaked to external parties. - All information handled by the software may be overwritten. - The software will not stop

Trust: 1.62

sources: NVD: CVE-2026-49871 // JVNDB: JVNDB-2026-020993

AFFECTED PRODUCTS

vendor:	apache	model:	apisix	scope:	lt	version:	3.17.0	Trust: 1.0
vendor:	apache	model:	apisix	scope:	gte	version:	3.0.0	Trust: 1.0
vendor:	apache	model:	apisix	scope:	eq	version:	3.0.0 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-2026-020993 // NVD: CVE-2026-49871

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2026-49871
value:	CRITICAL
Trust: 1.0
security@apache.org:	CVE-2026-49871
value:	LOW
Trust: 1.0
NVD:	CVE-2026-49871
value:	CRITICAL
Trust: 0.8

nvd@nist.gov:	CVE-2026-49871
baseSeverity:	CRITICAL
baseScore:	9.3
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	REQUIRED
scope:	CHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	NONE
exploitabilityScore:	2.8
impactScore:	5.8
version:	3.1
Trust: 1.0
NVD:	CVE-2026-49871
baseSeverity:	CRITICAL
baseScore:	9.3
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	REQUIRED
scope:	CHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	NONE
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: JVNDB: JVNDB-2026-020993 // NVD: CVE-2026-49871 // NVD: CVE-2026-49871

PROBLEMTYPE DATA

problemtype:	CWE-352	Trust: 1.0
problemtype:	Cross-site request forgery (CWE-352) [ others ]	Trust: 0.8

sources: JVNDB: JVNDB-2026-020993 // NVD: CVE-2026-49871

PATCH

title:

Apache APISIX

url:

https://lists.apache.org/thread/1ozsnss0lof4gpwq763d66oxwxt3sycp

Trust: 0.8

sources: JVNDB: JVNDB-2026-020993

EXTERNAL IDS

db:	NVD	id:	CVE-2026-49871	Trust: 2.6
db:	OPENWALL	id:	OSS-SECURITY/2026/06/19/14	Trust: 1.0
db:	JVNDB	id:	JVNDB-2026-020993	Trust: 0.8

sources: JVNDB: JVNDB-2026-020993 // NVD: CVE-2026-49871

REFERENCES

url:	https://lists.apache.org/thread/1ozsnss0lof4gpwq763d66oxwxt3sycp	Trust: 1.0
url:	http://www.openwall.com/lists/oss-security/2026/06/19/14	Trust: 1.0
url:	https://nvd.nist.gov/vuln/detail/cve-2026-49871	Trust: 0.8

sources: JVNDB: JVNDB-2026-020993 // NVD: CVE-2026-49871

SOURCES

db:	JVNDB	id:	JVNDB-2026-020993
db:	NVD	id:	CVE-2026-49871

LAST UPDATE DATE

2026-06-26T23:34:04.341000+00:00

SOURCES UPDATE DATE

db:	JVNDB	id:	JVNDB-2026-020993	date:	2026-06-26T02:56:00
db:	NVD	id:	CVE-2026-49871	date:	2026-06-23T15:20:01.637

SOURCES RELEASE DATE

db:	JVNDB	id:	JVNDB-2026-020993	date:	2026-06-26T00:00:00
db:	NVD	id:	CVE-2026-49871	date:	2026-06-19T14:16:23.800