CVE-2026-59652: bouncycastle bc-java LDAP Injection
CVSS: 6.9v4.0MediumAnalyzed
AliasesUBUNTU-CVE-2026-59652DEBIAN-CVE-2026-59652
Published 03-08-2026Last modified 03-08-2026
Vulnerability summary
CVE-2026-59652 is a medium (CVSS 6.9) LDAP Injection vulnerability in bouncycastle bc-java. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.8% of scored vulnerabilities.
CVSS score
6.9/10
010
Medium · v4.0 (CVE.org)EPSS score
0.29%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 5 · Related 5Timeline
- 03-08-2026PublishedVulnerability first disclosed.
- 03-08-2026Last modifiedVulnerability information updated.
Description
In Bouncy Castle for Java before 1.85, LDAP filter injection in legacy jdk1.4 LDAPStoreHelper.
CVSS metrics
6 scores · 4 sources · 2 versionsMedium 6.9Preferred score · CVE.org (CNA)
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:AmberSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.9MediumCVSS: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
- NVDNIST6.9MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber
Medium 6.5Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NSourcesAll 3 agree
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS trend
Probability
0.29%
Chance of exploitation in the next 30 days
Percentile
21%
Versus all other CVEs
30-day change
0.00 pp
From 0.30% on 19-09-2026
19-09-202619-10-2026
EPSS score0.29%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Bouncycastle1 product
- bc-java< 1.85
Debian1 product
- bouncycastleAll versions (No fix recorded) | < 1.86-1
Legion of the bouncy castle inc.1 product
- bc-java< 1.85
Ubuntu1 product
- bouncycastleAll versions (No fix recorded)
4 vendors · 4 products
References
5 links- github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9059652Vendor AdvisoryREPORTThird Party Advisory
