Resteasy-core: resteasy: corsfilter reflects arbitrary origin with credentials under wildcard config
CVSS score
7.4
EPSS probability
%0.2
Risk score
0.0
Published
24 d ago
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Impact on My Inventory
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Vulnerability description
DayBreach CVE AI Research
CVE-2026-89058 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
A flaw was found in RESTEasy's CorsFilter, which, when configured to allow all origins ("*"), reflects the request's Origin header back in the Access-Control-Allow-Origin response together with Access-Control-Allow-Credentials: true. This permissive cross-origin policy allows a malicious website to make credentialed cross-origin requests and read authenticated responses from a victim's session, resulting in a loss of confidentiality.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-89058 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | Red Hat | RESTEasy | View |
| 2 | Red Hat | Red Hat build of Apache Camel 4 for Quarkus 3 | View |
| 3 | Red Hat | Red Hat build of Apicurio Registry 3 | View |
| 4 | Red Hat | Red Hat build of Debezium 3 | View |
| 5 | Red Hat | Red Hat Build of Keycloak | View |
| 6 | Red Hat | Red Hat build of Quarkus | View |
| 7 | Red Hat | Red Hat Certificate System 10 | View |
| 8 | Red Hat | Red Hat Certificate System 11 | View |
| 9 | Red Hat | Red Hat Enterprise Linux 10 | View |
| 10 | Red Hat | Red Hat Enterprise Linux 8 | View |
| 11 | Red Hat | Red Hat Enterprise Linux 9 | View |
| 12 | Red Hat | Red Hat Fuse 7 | View |
| 13 | Red Hat | Red Hat JBoss Enterprise Application Platform 7 | View |
| 14 | Red Hat | Red Hat JBoss Enterprise Application Platform 8 | View |
| 15 | Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack | View |
| 16 | Red Hat | Red Hat Satellite 6 | View |
| 17 | Red Hat | Red Hat Single Sign-On 7 | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 7.4 | CVSS V3_1 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N | CVE CNA |
| 7.4 | CVSS V31 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-89058 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-89058 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
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Get this vulnerability through the API
Affected products, version ranges, exploitation status and patch information in a single request, with a free key.
curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.enginteksut.com.tr/api/v1/intel/cves/CVE-2026-89058"