Search/CVE-2026-12817
● CVE — High

CVE-2026-12817

VendorbouncycastleProductbc-java, bouncy castle for java lts, bcpg-fipsDiscoveredAug 3, 2026UpdatedAug 31, 2026

In Bouncy Castle for Java before 1.85, OpenPGP AEAD decryption skips final tag on chunk-aligned data. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpg-fips 1.0.13 (1.0.X series), 2.0.13 (2.0.X series) and 2.1.13 (2.1.X series).

View graph Watch Export
CVSS v3.1
8.6 HIGH
EPSS
0.17%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Oct 5, 2026
▲ 0.01pp
0.16% → 0.17% over 5 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityLOW
IntegrityLOW
AvailabilityHIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Connections
4 relationships
Timeline
disclosure → media coverage
Aug 3, 2026
Disclosure — published as a CVE record. · last revised by NVD Aug 31, 2026