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).
{
"cna_assigner": "bcorg",
"cwe_ids": [
"CWE-354"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/12xxx/CVE-2026-12817.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"introduced": "1.0.7"
},
{
"fixed": "1.0.13"
},
{
"introduced": "2.0.0"
},
{
"fixed": "2.0.13"
},
{
"introduced": "2.1.0"
},
{
"fixed": "2.1.13"
}
],
"source": "AFFECTED_FIELD"
}
]
}{
"extracted_events": [
{
"introduced": "1.74"
},
{
"fixed": "1.85"
}
],
"source": "AFFECTED_FIELD"
}
{
"cpe": "cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "2.73.0"
},
{
"fixed": "2.73.12"
},
{
"introduced": "0"
},
{
"last_affected": "2.73.11"
}
],
"source": [
"AFFECTED_FIELD",
"CPE_RANGE"
]
}