CVE-2026-85088— Apache Thrift, Apache Thrift: The C++ and D clients fall back to the certificate Common Name when subjectAltName entries are present but do not match
Quick assessment
Affected
Apache Software Foundation Apache Thrift
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Apache Thrift C++ 和 D 语言库中存在证书与主机名不匹配时的验证不当漏洞。 这两个库分别为客户端套接字安装了默认的访问管理器：C++ 库使用 ，D 库则通过 属性实现。这些管理器会将对等方的证书与已连接的主机名进行比较。该比较过程首先检查 （主题备用名称）中的 条目，若未匹配，再进一步检查证书的 （通用名称）。然而，当主机名不匹配时，系统仅返回“跳过”（skip）结果，而非拒绝连接。因此，如果证书的所有 条目均存在但与目标主机名不匹配，验证过程会继续检查 ，而该 可能满足匹配条件，从而导致验证错误
Possible ATT&CK Techniques 1 AI
T1557 · Adversary-in-the-MiddleAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Apache Software Foundation | Apache Thrift | < 0.25.0 |
affected |
< 0.25.0 |
affected |
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I. Basic Information for CVE-2026-85088
Vulnerability Information
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Vulnerability Title
Apache Thrift, Apache Thrift: The C++ and D clients fall back to the certificate Common Name when subjectAltName entries are present but do not match
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Validation of Certificate with Host Mismatch in the C++ and D libraries of Apache Thrift.
Both libraries install a default access manager for client sockets — TSSLSocketFactory does so in C++, and the accessManager property does so in D — which compares the peer certificate against the host
name that was connected to. That comparison walks the subjectAltName dNSName entries first and consults the certificate Common Name afterwards. A name that does not match yields a "skip" result rather than
a rejection, so a certificate whose subjectAltName entries are all present and all non-matching falls through to the Common Name, which can then satisfy the check.
RFC 6125 section 6.4.4, and RFC 9525 section 2, require that the Common Name is not consulted when a dNSName subjectAltName is present. A certificate carrying subjectAltName entries for one name and a
Common Name for another is therefore accepted for a connection to the second name.
Exploitation requires an attacker positioned on the network path who holds a certificate that chains to a certificate authority in the client's trust store and whose Common Name matches the connected host
name. Public certificate authorities have not issued on Common Name alone for many years, so this is principally a concern for deployments using a private or enterprise public-key infrastructure.
This issue affects the C++ library of Apache Thrift from 0.7.0 through 0.24.0 and the D library from 0.9.0 through 0.24.0. Users should upgrade to 0.25.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Apache Software Foundation | Apache Thrift | 0 ~ 0.25.0 | - |
|
| Apache Software Foundation | Apache Thrift | 0 ~ 0.25.0 | - |
|
II. Public POCs for CVE-2026-85088
| # | POC Description | Source Link | Shenlong Link |
|---|
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Mailing List Discussions for CVE-2026-85088 (2)
Same Patch Batch · Apache Software Foundation · 2026-10-02 · 69 CVEs total
| CVE-2026-102795 | 9.3 CRITICAL | Apache Traffic Server: SNI to Host header matching policy is not properly enforced |
| CVE-2026-91135 | 9.2 CRITICAL | Apache Thrift: C++ `THeaderTransport::transform()` heap buffer overflow (write direction) |
| CVE-2026-83632 | 9.2 CRITICAL | Apache Thrift: C++ THttpTransport grows its line buffer without bound |
| CVE-2026-61373 | 8.7 HIGH | Apache Thrift: Java TSaslNonblockingServer pre-auth unbounded SASL frame allocation |
| CVE-2026-66859 | 8.7 HIGH | Apache Thrift: c_glib multiplexed processor crashes on a message it cannot route |
| CVE-2026-94658 | 8.7 HIGH | Apache Thrift: Lua `TFramedTransport`/`THttpTransport` re-slice the buffer on every read ( |
| CVE-2026-94646 | 8.7 HIGH | Apache Thrift: Node.js `server.js` ends the process on any per-connection error (+ two tri |
| CVE-2026-87117 | 8.7 HIGH | Apache Thrift: PHP `thrift_protocol` accelerator dereferences a missing container-element |
| CVE-2026-86535 | 8.7 HIGH | Apache Thrift: A JSON member name can stall the Node server's event loop indefinitely |
| CVE-2026-82458 | 8.7 HIGH | Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, |
| CVE-2026-96294 | 8.7 HIGH | Apache Thrift: nodejs web server: no `error` listener on an upgraded WebSocket connection |
| CVE-2026-86537 | 8.7 HIGH | Apache Thrift: A truncated HTTP request stops the D library's server, allowing an unauthen |
| CVE-2026-94642 | 8.7 HIGH | Apache Thrift: PHP `TSimpleServer` exits the whole process on any non-transport exception |
| CVE-2026-85493 | 8.7 HIGH | Apache Thrift, Apache Thrift: TProtocolUtil.skip follows peer-chosen nesting to any depth |
| CVE-2026-85494 | 8.7 HIGH | Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, |
| CVE-2026-91137 | 8.7 HIGH | Apache Thrift: PHP `thrift_protocol` accelerator: zero-byte container elements |
| CVE-2026-93925 | 8.7 HIGH | Apache Thrift: C++ `THeaderTransport::writeVarint32()` stack buffer overflow on a negative |
| CVE-2026-93926 | 8.7 HIGH | Apache Thrift: C++ `THeaderTransport::untransform()` leaks the zlib stream on the error pa |
| CVE-2026-94633 | 8.7 HIGH | Apache Thrift: Dart `TBinaryProtocol.readMessageBegin` allocates from the pre-versioned na |
| CVE-2026-94635 | 8.7 HIGH | Apache Thrift: Lua `TBinaryProtocol:readMessageBegin` bypasses `checkStringSize` on the pr |
Showing top 20 of 69 CVEs. View all on vendor page → →
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V. Comments for CVE-2026-85088
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