CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-8763

In Bouncy Castle for Java before 1.85, Name Constraints bypass via trailing dot in rfc822Name and URI. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series).

Exploit prediction scoring system (EPSS) score

EPSS Score 0.004

EPSS Ranking 27.8%

CVSS Severity

CVSS v3 Score 9.1

References

Products affected by CVE-2026-8763

Bouncycastle » Bc-Java » Version: N/A

cpe:2.3:a:bouncycastle:bc-java:-
Bouncycastle » Bc-Java » Version: 1.01

cpe:2.3:a:bouncycastle:bc-java:1.01
Bouncycastle » Bc-Java » Version: 1.02

cpe:2.3:a:bouncycastle:bc-java:1.02
Bouncycastle » Bc-Java » Version: 1.03

cpe:2.3:a:bouncycastle:bc-java:1.03
Bouncycastle » Bc-Java » Version: 1.04

cpe:2.3:a:bouncycastle:bc-java:1.04
Bouncycastle » Bc-Java » Version: 1.05

cpe:2.3:a:bouncycastle:bc-java:1.05
Bouncycastle » Bc-Java » Version: 1.06

cpe:2.3:a:bouncycastle:bc-java:1.06
Bouncycastle » Bc-Java » Version: 1.07

cpe:2.3:a:bouncycastle:bc-java:1.07
Bouncycastle » Bc-Java » Version: 1.08

cpe:2.3:a:bouncycastle:bc-java:1.08
Bouncycastle » Bc-Java » Version: 1.09

cpe:2.3:a:bouncycastle:bc-java:1.09
Bouncycastle » Bc-Java » Version: 1.10

cpe:2.3:a:bouncycastle:bc-java:1.10
Bouncycastle » Bc-Java » Version: 1.11

cpe:2.3:a:bouncycastle:bc-java:1.11
Bouncycastle » Bc-Java » Version: 1.12

cpe:2.3:a:bouncycastle:bc-java:1.12
Bouncycastle » Bc-Java » Version: 1.13

cpe:2.3:a:bouncycastle:bc-java:1.13
Bouncycastle » Bc-Java » Version: 1.14

cpe:2.3:a:bouncycastle:bc-java:1.14
Bouncycastle » Bc-Java » Version: 1.15

cpe:2.3:a:bouncycastle:bc-java:1.15
Bouncycastle » Bc-Java » Version: 1.16

cpe:2.3:a:bouncycastle:bc-java:1.16
Bouncycastle » Bc-Java » Version: 1.17

cpe:2.3:a:bouncycastle:bc-java:1.17
Bouncycastle » Bc-Java » Version: 1.18

cpe:2.3:a:bouncycastle:bc-java:1.18
Bouncycastle » Bc-Java » Version: 1.19

cpe:2.3:a:bouncycastle:bc-java:1.19
Bouncycastle » Bc-Java » Version: 1.20

cpe:2.3:a:bouncycastle:bc-java:1.20
Bouncycastle » Bc-Java » Version: 1.21

cpe:2.3:a:bouncycastle:bc-java:1.21
Bouncycastle » Bc-Java » Version: 1.22

cpe:2.3:a:bouncycastle:bc-java:1.22
Bouncycastle » Bc-Java » Version: 1.23

cpe:2.3:a:bouncycastle:bc-java:1.23
Bouncycastle » Bc-Java » Version: 1.24

cpe:2.3:a:bouncycastle:bc-java:1.24
Bouncycastle » Bc-Java » Version: 1.25

cpe:2.3:a:bouncycastle:bc-java:1.25
Bouncycastle » Bc-Java » Version: 1.26

cpe:2.3:a:bouncycastle:bc-java:1.26
Bouncycastle » Bc-Java » Version: 1.27

cpe:2.3:a:bouncycastle:bc-java:1.27
Bouncycastle » Bc-Java » Version: 1.28

cpe:2.3:a:bouncycastle:bc-java:1.28
Bouncycastle » Bc-Java » Version: 1.29

cpe:2.3:a:bouncycastle:bc-java:1.29
Bouncycastle » Bc-Java » Version: 1.30

cpe:2.3:a:bouncycastle:bc-java:1.30
Bouncycastle » Bc-Java » Version: 1.31

cpe:2.3:a:bouncycastle:bc-java:1.31
Bouncycastle » Bc-Java » Version: 1.32

cpe:2.3:a:bouncycastle:bc-java:1.32
Bouncycastle » Bc-Java » Version: 1.33

cpe:2.3:a:bouncycastle:bc-java:1.33
Bouncycastle » Bc-Java » Version: 1.34

cpe:2.3:a:bouncycastle:bc-java:1.34
Bouncycastle » Bc-Java » Version: 1.35

cpe:2.3:a:bouncycastle:bc-java:1.35
Bouncycastle » Bc-Java » Version: 1.36

cpe:2.3:a:bouncycastle:bc-java:1.36
Bouncycastle » Bc-Java » Version: 1.37

cpe:2.3:a:bouncycastle:bc-java:1.37
Bouncycastle » Bc-Java » Version: 1.38

cpe:2.3:a:bouncycastle:bc-java:1.38
Bouncycastle » Bc-Java » Version: 1.39

cpe:2.3:a:bouncycastle:bc-java:1.39
Bouncycastle » Bc-Java » Version: 1.40

cpe:2.3:a:bouncycastle:bc-java:1.40
Bouncycastle » Bc-Java » Version: 1.41

cpe:2.3:a:bouncycastle:bc-java:1.41
Bouncycastle » Bc-Java » Version: 1.42

cpe:2.3:a:bouncycastle:bc-java:1.42
Bouncycastle » Bc-Java » Version: 1.43

cpe:2.3:a:bouncycastle:bc-java:1.43
Bouncycastle » Bc-Java » Version: 1.44

cpe:2.3:a:bouncycastle:bc-java:1.44
Bouncycastle » Bc-Java » Version: 1.45

cpe:2.3:a:bouncycastle:bc-java:1.45
Bouncycastle » Bc-Java » Version: 1.46

cpe:2.3:a:bouncycastle:bc-java:1.46
Bouncycastle » Bc-Java » Version: 1.47

cpe:2.3:a:bouncycastle:bc-java:1.47
Bouncycastle » Bc-Java » Version: 1.48

cpe:2.3:a:bouncycastle:bc-java:1.48
Bouncycastle » Bc-Java » Version: 1.49

cpe:2.3:a:bouncycastle:bc-java:1.49
Bouncycastle » Bc-Java » Version: 1.50

cpe:2.3:a:bouncycastle:bc-java:1.50
Bouncycastle » Bc-Java » Version: 1.51

cpe:2.3:a:bouncycastle:bc-java:1.51
Bouncycastle » Bc-Java » Version: 1.52

cpe:2.3:a:bouncycastle:bc-java:1.52
Bouncycastle » Bc-Java » Version: 1.53

cpe:2.3:a:bouncycastle:bc-java:1.53
Bouncycastle » Bc-Java » Version: 1.54

cpe:2.3:a:bouncycastle:bc-java:1.54
Bouncycastle » Bc-Java » Version: 1.55

cpe:2.3:a:bouncycastle:bc-java:1.55
Bouncycastle » Bc-Java » Version: 1.56

cpe:2.3:a:bouncycastle:bc-java:1.56
Bouncycastle » Bc-Java » Version: 1.57

cpe:2.3:a:bouncycastle:bc-java:1.57
Bouncycastle » Bc-Java » Version: 1.58

cpe:2.3:a:bouncycastle:bc-java:1.58
Bouncycastle » Bc-Java » Version: 1.59

cpe:2.3:a:bouncycastle:bc-java:1.59
Bouncycastle » Bc-Java » Version: 1.60

cpe:2.3:a:bouncycastle:bc-java:1.60
Bouncycastle » Bc-Java » Version: 1.61

cpe:2.3:a:bouncycastle:bc-java:1.61
Bouncycastle » Bc-Java » Version: 1.62

cpe:2.3:a:bouncycastle:bc-java:1.62
Bouncycastle » Bc-Java » Version: 1.63

cpe:2.3:a:bouncycastle:bc-java:1.63
Bouncycastle » Bc-Java » Version: 1.64

cpe:2.3:a:bouncycastle:bc-java:1.64
Bouncycastle » Bc-Java » Version: 1.65

cpe:2.3:a:bouncycastle:bc-java:1.65
Bouncycastle » Bc-Java » Version: 1.66

cpe:2.3:a:bouncycastle:bc-java:1.66
Bouncycastle » Bc-Java » Version: 1.67

cpe:2.3:a:bouncycastle:bc-java:1.67
Bouncycastle » Bc-Java » Version: 1.68

cpe:2.3:a:bouncycastle:bc-java:1.68
Bouncycastle » Bc-Java » Version: 1.69

cpe:2.3:a:bouncycastle:bc-java:1.69
Bouncycastle » Bc-Java » Version: 1.70

cpe:2.3:a:bouncycastle:bc-java:1.70
Bouncycastle » Bc-Java » Version: 1.71

cpe:2.3:a:bouncycastle:bc-java:1.71
Bouncycastle » Bc-Java » Version: 1.72

cpe:2.3:a:bouncycastle:bc-java:1.72
Bouncycastle » Bc-Java » Version: 1.72.1

cpe:2.3:a:bouncycastle:bc-java:1.72.1
Bouncycastle » Bc-Java » Version: 1.72.2

cpe:2.3:a:bouncycastle:bc-java:1.72.2
Bouncycastle » Bc-Java » Version: 1.73

cpe:2.3:a:bouncycastle:bc-java:1.73
Bouncycastle » Bc-Java » Version: 1.74

cpe:2.3:a:bouncycastle:bc-java:1.74
Bouncycastle » Bc-Java » Version: 1.75

cpe:2.3:a:bouncycastle:bc-java:1.75
Bouncycastle » Bc-Java » Version: 1.76

cpe:2.3:a:bouncycastle:bc-java:1.76
Bouncycastle » Bc-Java » Version: 1.77

cpe:2.3:a:bouncycastle:bc-java:1.77
Bouncycastle » Bc-Java » Version: 1.78

cpe:2.3:a:bouncycastle:bc-java:1.78
Bouncycastle » Bc-Java » Version: 1.78.1

cpe:2.3:a:bouncycastle:bc-java:1.78.1
Bouncycastle » Bc-Java » Version: 1.79

cpe:2.3:a:bouncycastle:bc-java:1.79
Bouncycastle » Bc-Java » Version: 1.80

cpe:2.3:a:bouncycastle:bc-java:1.80
Bouncycastle » Bc-Java » Version: 1.81

cpe:2.3:a:bouncycastle:bc-java:1.81
Bouncycastle » Bc-Java » Version: 1.82

cpe:2.3:a:bouncycastle:bc-java:1.82
Bouncycastle » Bc-Java » Version: 1.83

cpe:2.3:a:bouncycastle:bc-java:1.83
Bouncycastle » Bc-Java » Version: 1.84

cpe:2.3:a:bouncycastle:bc-java:1.84
Bouncycastle » Bouncy Castle For Java Lts » Version: 2.73.0

cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:2.73.0
Bouncycastle » Bouncy Castle For Java Lts » Version: 2.73.1

cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:2.73.1
Bouncycastle » Bouncy Castle For Java Lts » Version: 2.73.10

cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:2.73.10
Bouncycastle » Bouncy Castle For Java Lts » Version: 2.73.11

cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:2.73.11
Bouncycastle » Bouncy Castle For Java Lts » Version: 2.73.2

cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:2.73.2
Bouncycastle » Bouncy Castle For Java Lts » Version: 2.73.3

cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:2.73.3
Bouncycastle » Bouncy Castle For Java Lts » Version: 2.73.4

cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:2.73.4
Bouncycastle » Bouncy Castle For Java Lts » Version: 2.73.5

cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:2.73.5
Bouncycastle » Bouncy Castle For Java Lts » Version: 2.73.6

cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:2.73.6
Bouncycastle » Bouncy Castle For Java Lts » Version: 2.73.7

cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:2.73.7
Bouncycastle » Bouncy Castle For Java Lts » Version: 2.73.8

cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:2.73.8
Bouncycastle » Bouncy Castle For Java Lts » Version: 2.73.9

cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:2.73.9
Bouncycastle » Fips Java Api » Version: 1.0.0

cpe:2.3:a:bouncycastle:fips_java_api:1.0.0
Bouncycastle » Fips Java Api » Version: 1.0.1

cpe:2.3:a:bouncycastle:fips_java_api:1.0.1
Bouncycastle » Fips Java Api » Version: 1.0.1.2

cpe:2.3:a:bouncycastle:fips_java_api:1.0.1.2
Bouncycastle » Fips Java Api » Version: 1.0.2

cpe:2.3:a:bouncycastle:fips_java_api:1.0.2
Bouncycastle » Fips Java Api » Version: 1.0.2.1

cpe:2.3:a:bouncycastle:fips_java_api:1.0.2.1
Bouncycastle » Fips Java Api » Version: 1.0.2.2

cpe:2.3:a:bouncycastle:fips_java_api:1.0.2.2
Bouncycastle » Fips Java Api » Version: 1.0.2.3

cpe:2.3:a:bouncycastle:fips_java_api:1.0.2.3
Bouncycastle » Fips Java Api » Version: 1.0.2.4

cpe:2.3:a:bouncycastle:fips_java_api:1.0.2.4
Bouncycastle » Fips Java Api » Version: 1.0.2.5

cpe:2.3:a:bouncycastle:fips_java_api:1.0.2.5
Bouncycastle » Fips Java Api » Version: 1.0.2.6

cpe:2.3:a:bouncycastle:fips_java_api:1.0.2.6
Bouncycastle » Fips Java Api » Version: 2.0.0

cpe:2.3:a:bouncycastle:fips_java_api:2.0.0
Bouncycastle » Fips Java Api » Version: 2.0.1

cpe:2.3:a:bouncycastle:fips_java_api:2.0.1
Bouncycastle » Fips Java Api » Version: 2.1.0

cpe:2.3:a:bouncycastle:fips_java_api:2.1.0
Bouncycastle » Fips Java Api » Version: 2.1.1

cpe:2.3:a:bouncycastle:fips_java_api:2.1.1
Bouncycastle » Fips Java Api » Version: 2.1.2

cpe:2.3:a:bouncycastle:fips_java_api:2.1.2

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-8763

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