Apache Thrift: Uncaught exception in Java TSaslNonblockingServer
Summary
Apache Thrift Java bindings before 0.25.0 contain an uncaught exception flaw, a follow-on (residual) issue of CVE-2026-61373 in the Java TSaslNonblockingServer. The CNA reports a network-reachable denial-of-service impact on availability, with no privileges or user interaction required. Exposure exists only where a Java application runs a Thrift service, often indirectly through a bundled libthrift library.
Affected
- Apache Thrift (Java bindings, org.apache.thrift:libthrift) versions before 0.25.0
- Unknown: exact affected range of third-party distributions
Fixed in
- Apache Thrift 0.25.0
- openSUSE: libthrift-0_25_0-0.25.0-1.1
- Azure Linux: thrift 0.25.0-1
- Bitnami: 0.25.0
- Debian: Unknown
Workaround
- Unknown. No vendor workaround published.
- Restrict network access to Thrift listeners until the upgrade is complete.
Exploitation
- CISA SSVC: exploitation none, automatable no, technical impact partial
- Not listed in CISA KEV
- No public proof of concept found
- EPSS 0.00426
Our recommendation
- Inventory Java applications and dependency trees for libthrift (for example with mvn dependency:tree).
- Upgrade libthrift to 0.25.0 or the build fixed by your vendor.
- Check whether any Thrift server uses SASL and whether it is reachable from the internet.
- Review the Apache mailing-list threads for additional guidance.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Apache mailing list thread 1 lists.apache.org
- Apache mailing list thread 2 lists.apache.org
- OSV: Debian record CVE-2026-94639 osv.dev
- OSV: Bitnami thrift CVE-2026-94639 osv.dev
- Vulners: CVE-2026-94639 (CVE list) vulners.com
- hapi-fhir issue 8737 (dependency scanner flag) github.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 1 Nov 2026, 17:27.
Original description (NVD)
improper handling of exceptional conditions, Allocation of resources without limits or throttling, Uncaught exception vulnerability in Apache Thrift Java bindings. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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