CVE-2026-4893
MEDIUMCVSS 5.3/10EPSS 2.68%
Last modified
CVE-2026-4893 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An information disclosure vulnerability in dnsmasq allows remote attackers to bypass source checks via a crafted DNS packet with RFC 7871 client subnet information.. EPSS estimates a 2.68% chance of exploitation in the next 30 days.
Description
An information disclosure vulnerability in dnsmasq allows remote attackers to bypass source checks via a crafted DNS packet with RFC 7871 client subnet information.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| dnsmasq | dnsmasq | < 2.92rel2 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-4893?
An information disclosure vulnerability in dnsmasq allows remote attackers to bypass source checks via a crafted DNS packet with RFC 7871 client subnet information.
How severe is CVE-2026-4893?
CVE-2026-4893 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 2.68% probability of exploitation in the next 30 days.
How do I fix CVE-2026-4893?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-48924Jenkins Bitbucket OAuth Plugin 0.17 and earlier does not res…4.3
- CVE-2026-48925A cross-site request forgery (CSRF) vulnerability in Jenkins…4.3
- CVE-2026-48926Jenkins Job Import Plugin 143.v044a_2e819b_27 and earlier do…4.3
- CVE-2026-48927Jenkins buildgraph-view Plugin 1.8 and earlier does not esca…5.5
- CVE-2026-48928A inconsistency in Node.js hostname matching can cause a tru…5.4
- CVE-2026-48929Rocket.Chat in versions <8.5.1, <8.4.4, <8.3.6, <8.2.6, <8.1…7.5
- CVE-2026-48930A flaw in Node.js TLS hostname handling can cause Embedded-n…9.8
- CVE-2026-48931A flaw in Node.js HTTP Agent can cause a client to accept as…3.7
- CVE-2026-48933A flaw in Node.js WebCrypto implementation can crash the pro…7.5
- CVE-2026-48934A flaw in Node.js TLS host verification can cause an attacke…4.3
- CVE-2026-48935A flaw in Node.js Permission API can cause a file metadata t…3.3
- CVE-2026-48936A flaw in Node.js Permission API can cause a local server to…3.3
Are you affected by CVE-2026-4893?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST