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Apache APISIX EUVDEUVD-2026-38018

| CVE-2026-44915 LOW
URL Redirection to Untrusted Site (Open Redirect) (CWE-601)
2026-06-19 apache GHSA-2pmh-ppc3-5j39
Apache Open Redirect Apache Apisix
2.1
CVSS 4.0 · Vendor: apache

Severity by source

Vendor (apache) PRIMARY
2.1 LOW
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
6.1 MEDIUM

Network delivery with no required privileges, but user must click a crafted link; scope changes to victim browser/identity layer with low confidentiality and integrity impact from credential theft.

3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Primary rating from Vendor (apache).

CVSS VectorVendor: apache

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
A
Scope
X

Lifecycle Timeline

1
Analysis Generated
Jun 19, 2026 - 14:23 vuln.today

DescriptionCVE.org

URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Apache APISIX.

The default configuration of cas-auth in Apache APISIX is vulnerable to phishing and credential theft.

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.

AnalysisAI

Open redirect in Apache APISIX's cas-auth plugin exposes users to phishing and credential theft when the plugin is used in its default configuration. Affected are all APISIX deployments running versions 3.0.0 through 3.16.0 with cas-auth enabled. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Recon
Identify APISIX cas-auth endpoint
Delivery
Craft malicious CAS redirect URL
Exploit
Deliver phishing link to victim
Install
Victim authenticates via CAS
C2
APISIX redirects to attacker-controlled site
Execute
Victim submits credentials to phishing page
Impact
Attacker harvests credentials
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Vulnerability AssessmentAI

Exploitation Exploitation requires that the targeted APISIX deployment has the cas-auth plugin enabled and configured (it is not enabled globally by default but must be applied to a route). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The overall real-world risk is low-to-moderate and highly dependent on deployment context. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker identifies a public-facing application protected by Apache APISIX's cas-auth plugin. The attacker crafts a login URL that encodes a redirect target pointing to an attacker-controlled phishing page mimicking the legitimate application. …
Remediation The primary fix is upgrading Apache APISIX to version 3.17.0, which resolves the open redirect in cas-auth's default configuration per the vendor advisory at https://lists.apache.org/thread/2syk2kkzjnpzrdh98plbzj8os7wn521c. … Detailed patch versions, workarounds, and compensating controls in full report.
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Threat intelligence, references, and detailed analysis are available after sign-in.

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EUVD-2026-38018 vulnerability details – vuln.today
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