CVE-2026-101296— Apache Tomcat: JNDIRealm bind credential validation fails open for non-GSSAPI SASL mechanisms
Quick assessment
Affected
Apache Software Foundation Apache Tomcat
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 Tomcat 在 JNDI Realm 配置为非 GSSAPI 的 SASL 认证机制时，存在一个认证流程中缺失关键步骤的严重漏洞，导致攻击者无需提供正确密码即可通过身份验证。 受影响版本包括： Apache Tomcat 11.0.0-M1 至 11.0.26 Apache Tomcat 10.1.0-M1 至 10.1.60 Apache Tomcat 9.0.0.M1 至 9.0.122 此外，以下版本在 CVE 发布时已停止支持（EOL），但已知同样受影响： Apache Tomcat 8.5
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I. Basic Information for CVE-2026-101296
Vulnerability Information
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Vulnerability Title
Apache Tomcat: JNDIRealm bind credential validation fails open for non-GSSAPI SASL mechanisms
Source: CVE Program / CVE List V5
Vulnerability Description
A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate without providing the correct password.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122.
The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
认证中关键步骤缺失
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat | 11.0.0-M1 ~ 11.0.26 | - |
|
II. Public POCs for CVE-2026-101296
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|---|
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Other References for CVE-2026-101296 (1)
Same Patch Batch · Apache Software Foundation · 2026-10-20 · 20 CVEs total
| CVE-2026-86471 | 9.3 CRITICAL | Apache CouchDB: Admin credentials leading to code execution as operating system user |
| CVE-2026-90800 | 8.1 HIGH | Apache CouchDB: Auth bypass in prefixed _users and _replicator databases |
| CVE-2026-90797 | 7.7 HIGH | Apache CouchDB: Pre-authentication gzip decompression bomb via POST /_session |
| CVE-2026-107755 | 6.0 MEDIUM | Apache CouchDB: Credential Disclosure to Non-Owner Members via Object-Form Replication End |
| CVE-2026-90799 | 1.3 LOW | Apache CouchDB: Atom-table exhaustion in _changes sequences and _search bookmarks with spe |
| CVE-2026-90798 | 0.6 LOW | Apache CouchDB: Replicator follows redirects indefinitely |
| CVE-2026-88041 | Apache Tomcat: HTTP/2 trailer header cross-contamination | |
| CVE-2026-103119 | Apache Tomcat: AJP response mix-up | |
| CVE-2026-101356 | Apache Tomcat: HTTP/2 request/response mix-up after error during async processing | |
| CVE-2026-93446 | Apache Tomcat: Possible TLS 1.3 connection failures | |
| CVE-2026-86467 | Apache Airflow Amazon provider: AWS auth manager: SAML login CSRF logs users into the atta | |
| CVE-2026-80353 | Apache Tomcat: TOCTOU when setting specific permissions for Unix Domain Sockets - Fix for | |
| CVE-2026-74049 | Apache Tomcat: Jasper JSTL <c:redirect> plug-in implementation omits page abort (SKIP_PAGE | |
| CVE-2026-74048 | Apache Tomcat: OpenSSL-FFM FIPS failure does not prevent start-up | |
| CVE-2026-108089 | Apache Cocoon: Unauthenticated access to diagnostic interfaces | |
| CVE-2026-108088 | Apache Cocoon: Cross-user cache poisoning | |
| CVE-2026-108087 | Apache Cocoon: SQL Injection | |
| CVE-2026-108086 | Apache Cocoon: XEE could lead to SSRF and information disclosure | |
| CVE-2026-92287 | Apache Arrow C++, PyArrow: Parquet file-controlled KMS URL is forwarded to pluggable KmsCl |
IV. Related Vulnerabilities
Same product: Apache Tomcat
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CVE-2026-103119
Apache Tomcat: AJP response mix-up -
CVE-2026-101356
Apache Tomcat: HTTP/2 request/response mix-up after error du -
CVE-2026-93446
Apache Tomcat: Possible TLS 1.3 connection failures -
CVE-2026-88041
Apache Tomcat: HTTP/2 trailer header cross-contamination -
CVE-2026-80353
Apache Tomcat: TOCTOU when setting specific permissions for
Same vendor: Apache Software Foundation
-
CVE-2026-107755
Apache CouchDB: Credential Disclosure to Non-Owner Members v -
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Apache CouchDB: Auth bypass in prefixed _users and _replicat -
CVE-2026-90799
Apache CouchDB: Atom-table exhaustion in _changes sequences -
CVE-2026-90798
Apache CouchDB: Replicator follows redirects indefinitely -
CVE-2026-90797
Apache CouchDB: Pre-authentication gzip decompression bomb v
Same weakness: CWE-304
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V. Comments for CVE-2026-101296
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