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CVE-2026-59652— LDAP filter injection in legacy jdk1.4 LDAPStoreHelper

Quick assessment

Affected
Legion of the Bouncy Castle Inc. BC-JAVA
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.

Legion of the Bouncy Castle Inc BC-JAVA是Legion of the Bouncy Castle Inc组织的一个提供加密算法的Java组件。 Legion of the Bouncy Castle Inc BC-JAVA 1.85之前版本存在输入验证错误漏洞，该漏洞源于遗留的jdk1.4 LDAPStoreHelper容易受到LDAP过滤器注入攻击。

CVSS 6.9 · Medium EPSS 0.29% · P20

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Legion of the Bouncy Castle Inc. BC-JAVA < 1.85 affected
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I. Basic Information for CVE-2026-59652

Vulnerability Information
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Vulnerability Title
LDAP filter injection in legacy jdk1.4 LDAPStoreHelper
Source: CVE Program / CVE List V5
Vulnerability Description
In Bouncy Castle for Java before 1.85, LDAP filter injection in legacy jdk1.4 LDAPStoreHelper.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/U:Amber
Source: CVE Program / CVE List V5
Vulnerability Type
LDAP查询中使用的特殊元素转义处理不恰当(LDAP注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Legion of the Bouncy Castle Inc BC-JAVA 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Legion of the Bouncy Castle Inc BC-JAVA是Legion of the Bouncy Castle Inc组织的一个提供加密算法的Java组件。 Legion of the Bouncy Castle Inc BC-JAVA 1.85之前版本存在输入验证错误漏洞，该漏洞源于遗留的jdk1.4 LDAPStoreHelper容易受到LDAP过滤器注入攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Legion of the Bouncy Castle Inc. BC-JAVA 0 ~ 1.85 -

II. Public POCs for CVE-2026-59652

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III. Intelligence Information for CVE-2026-59652

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Patches & Fixes for CVE-2026-59652 (1)

Vendor Advisories for CVE-2026-59652 (1)

Vendor Pages for CVE-2026-59652 (1)

Same Patch Batch · Legion of the Bouncy Castle Inc. · 2026-08-03 · 32 CVEs total

CVE-2026-59638 9.3 CRITICAL JSSE hostname verifier CN-fallback enabled by default despite documented opt-in
CVE-2026-58062 9.3 CRITICAL Stapled OCSP response accepted without binding to the checked certificate
CVE-2026-8763 9.3 CRITICAL Name Constraints bypass via trailing dot in rfc822Name and URI
CVE-2026-59650 9.3 CRITICAL MTI/A0 DH agreement exponentiates unvalidated peer value
CVE-2026-59642 8.7 HIGH CMS AuthenticatedData content not bound to MAC when authAttrs present
CVE-2026-12860 8.7 HIGH RSA PKCS#1 verification skips last two hash bytes in NULL-omitted path
CVE-2026-12852 8.7 HIGH MLS wire decoder allocates attacker-declared opaque length before bounds check
CVE-2026-14682 8.7 HIGH Possible OOM from unbounded up-front allocation on a definite-length read
CVE-2026-12803 8.7 HIGH KCCMBlockCipher MAC does not bind nonce when AAD is absent (cross-nonce AEAD forgery)
CVE-2026-58061 8.7 HIGH CCM-family modes write plaintext to caller buffer before tag check
CVE-2026-58059 8.7 HIGH Quadratic-time escaping when stringifying X.500 distinguished names
CVE-2026-58060 8.7 HIGH HSS public-key level count unbounded, enabling huge allocation on verify
CVE-2026-12816 8.7 HIGH IESEngine stream-mode MAC forgery via length-dependent KDF split
CVE-2026-59645 8.7 HIGH OER parser recurses without depth limit on self-referential IEEE 1609.2 schema
CVE-2026-59641 8.7 HIGH S/MIME validator trusts signer-asserted signingTime for path validation
CVE-2026-12817 8.7 HIGH OpenPGP AEAD decryption skips final tag on chunk-aligned data
CVE-2026-12802 8.7 HIGH CMS AuthEnvelopedData fails to enforce tag-length on decryption
CVE-2026-59643 8.7 HIGH OpenPGP inline-signature policy failures silently ignored
CVE-2026-59646 8.7 HIGH DTLS handshake reassembler allocates buffer from unchecked 24-bit length
CVE-2026-59640 8.7 HIGH OpenPGP CFB quick-check oracle active on symmetric/session-key paths

Showing top 20 of 32 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: BC-JAVA
Same vendor: Legion of the Bouncy Castle Inc.
Same weakness: CWE-90

V. Comments for CVE-2026-59652

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