From CVE Record to External Exposure
A possible arbitrary file read and SSRF vulnerability has been identified in Apache Kafka Client. Apache Kafka Clients accept configuration data for setting the SASL/OAUTHBEARER connection with the brokers, including "sasl.oauthbearer.token.endpoint.url" and "sasl.oauthbearer.jwks.endpoint.url". Apache Kafka allows clients to read an arbitrary file and return the content in the error log, or sending requests to an unintended location. In applications where Apache Kafka Clients configurations can be specified by an untrusted party, attackers may use the "sasl.oauthbearer.token.endpoint.url" and "sasl.oauthbearer.jwks.endpoint.url" configuratin to read arbitrary contents of the disk and environment variables or make requests to an unintended location. In particular, this flaw may be used in Apache Kafka Connect to escalate from REST API access to filesystem/environment/URL access, which...
Kafka vulnerability should be triaged by matching the affected vendor and product to live, internet-facing assets rather than treating the CVE as an abstract feed item. ThreatPort focuses on the first question that budget-constrained IT leaders and CISOs ask: what can an outside observer find today, how severe is it, and what should be fixed first?
Known Exploitation Record
- Known ransomware campaign use
- Not recorded
- EPSS exploitation probability
- 64.68% (99p)
- CVSS base score
- 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
- Disclosed
- 2025-06-10
- Weakness type
- CWE-918
Source: CISA Known Exploited Vulnerabilities catalog and FIRST.org EPSS.
What ThreatPort Checks
The output is intentionally practical: ownership clues, risk context, remediation hints, and repeatable evidence that can be shared with technical teams or leadership. It is not positioned as magic compliance automation or a replacement for human security judgment.
Lean security teams rarely need another broad vulnerability list. They need to know whether an exposed endpoint, an expired certificate, a weak DNS setting, or a CVE-linked service is likely to affect the systems they actually run. ThreatPort scans from the outside in, ranks what it finds by real reachability rather than raw CVSS, and hands back evidence a team can act on the same day.
Route-Specific Evidence Profile
CVE-2025-27817 affects Apache Kafka, a CWE-918 weakness. Disclosed 2025-06-10. This page exists to answer one question: is anything you own externally reachable and running it.
Assets This Page Should Care About
Signals Worth Prioritizing
What Should Be Reviewed First in This Context?
For teams running Apache Kafka, the first step is to validate internet-facing assets with business relevance instead of producing a generic vulnerability list.
Action Checklist
- Confirm whether Kafka is present on any public domain, subdomain, API, or admin surface.
- Prioritize HIGH exposure only when the affected service is reachable or business-critical.
- Patch, disable, isolate, or put compensating controls in front of the affected service.
- Re-scan after remediation to capture before-and-after evidence for technical teams or leadership.
Context-Aware Next Fixes
- Verify ownership of exposed assets
- Close unnecessary public services
- Remediate the highest-confidence exposed findings first, then re-scan to prove closure.
Useful evidence for this context usually maps to ISO 27001, SOC 2, vendor security reviews. ThreatPort keeps the language cautious: this is operational security evidence, not a legal certification or a guarantee that every auditor will accept a generated report without review.