Varnish Cache before 7.6.2 and Varnish Enterprise before 6.0.13r10 allow client-side desync via HTTP/1 requests. (CVE-2025-30346)
Varnish Cache versions prior to 7.6.2 and Varnish Enterprise versions prior to 6.0.13r10 contain a vulnerability that allows client-side desynchronization attacks via HTTP/1 requests. This issue could potentially disrupt normal HTTP request processing by causing the client and server to become unsynchronized. The vulnerability is rated medium severity and no CVSS score is provided.
AI Analysis
Technical Summary
The vulnerability identified as CVE-2025-30346 affects Varnish Cache before version 7.6.2 and Varnish Enterprise before version 6.0.13r10. It permits client-side desynchronization through HTTP/1 requests, which can lead to unexpected behavior in HTTP request handling. No further technical details or exploitation methods are provided in the source data.
Potential Impact
The vulnerability allows client-side desynchronization via HTTP/1 requests, which may cause disruption in HTTP request processing. The exact impact or exploitation consequences are not detailed in the available information. There are no known exploits in the wild at this time.
Mitigation Recommendations
A fix is available in Varnish Cache version 7.6.2 and Varnish Enterprise version 6.0.13r10. Users should upgrade to these versions or later to remediate this vulnerability. No additional mitigation guidance is provided.
Varnish Cache before 7.6.2 and Varnish Enterprise before 6.0.13r10 allow client-side desync via HTTP/1 requests. (CVE-2025-30346)
Description
Varnish Cache versions prior to 7.6.2 and Varnish Enterprise versions prior to 6.0.13r10 contain a vulnerability that allows client-side desynchronization attacks via HTTP/1 requests. This issue could potentially disrupt normal HTTP request processing by causing the client and server to become unsynchronized. The vulnerability is rated medium severity and no CVSS score is provided.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2025-30346 affects Varnish Cache before version 7.6.2 and Varnish Enterprise before version 6.0.13r10. It permits client-side desynchronization through HTTP/1 requests, which can lead to unexpected behavior in HTTP request handling. No further technical details or exploitation methods are provided in the source data.
Potential Impact
The vulnerability allows client-side desynchronization via HTTP/1 requests, which may cause disruption in HTTP request processing. The exact impact or exploitation consequences are not detailed in the available information. There are no known exploits in the wild at this time.
Mitigation Recommendations
A fix is available in Varnish Cache version 7.6.2 and Varnish Enterprise version 6.0.13r10. Users should upgrade to these versions or later to remediate this vulnerability. No additional mitigation guidance is provided.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BIT-varnish-2025-30346
- Osv Schema Version
- 1.5.0
- Aliases
- ["CVE-2025-30346"]
- Ecosystems
- ["Bitnami"]
- Database Specific Severity
- Medium
Threat ID: 6aa005b3acd9273b49ab58a7
Added to database: 09/08/2026, 12:55:15 UTC
Last enriched: 09/08/2026, 13:10:05 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 3
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