UnratedFix available
Security update for bouncycastle
Type: advisorySources: OSV
This update for bouncycastle fixes the following issues: - CVE-2026-17507: negative signed leaf_index values from unsigned wire encodings can cause heap exhaustion (bsc#1284075). - CVE-2026-17508: unbounded KDF iteration and memory parameters can cause resource exhaustion (bsc#1284073). - CVE-2026-18036: variable-time modulo and division operations in NTRU implementation can allow timing side-channel attacks (bsc#1284065). - CVE-2026-18040: table lookups and variable-time duplicate scanning in HQC can cause cache side-channel leaks (bsc#1284205). - CVE-2026-71885: unbound X.509 certificates in MLS LeafNode verification can cause identity impersonation and group message interception (bsc#1284165). - CVE-2026-71886: unvalidated CERTIFY_OTHER flags in OpenPGP subkeys can cause unauthorized trust delegations and identity spoofing (bsc#1284212). - CVE-2026-71887: missing primary key back-signature validation on subkeys can cause signature misattribution and trust context spoofing (bsc#1284213). - CVE-2026-71888: disagreement between digestAlgorithm and authAttrs in CMS parsing can cause unauthenticated attribute injection (bsc#1284215). - CVE-2026-71889: skipped leaf certificate evaluation in checkNameConstraints can cause X.509 name constraint bypasses (bsc#1284218). - CVE-2026-71890: unbounded Remove proposals in external MLS commits can cause arbitrary group member eviction and session takeover (bsc#1284219). - CVE-2026-71891: forged ECPoint curves in BLS12-381 key validation c
- Products
- bouncycastle
- Affected versions
- Not specified
- Fixed versions
- 1.86-150200.3.41.1
- CVEs
- CVE-2026-17507, CVE-2026-17508, CVE-2026-18036, CVE-2026-18040, CVE-2026-71885, CVE-2026-71886, CVE-2026-71887, CVE-2026-71888, CVE-2026-71889, CVE-2026-71890, CVE-2026-71891, CVE-2026-71892, CVE-2026-85515, CVE-2026-97873
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 16:09 UTC · Revision 1
Source evidence
This update for bouncycastle fixes the following issues: - CVE-2026-17507: negative signed leaf_index values from unsigned wire encodings can cause heap exhaustion (bsc#1284075). - CVE-2026-17508: unbounded KDF iteration and memory parameters can cause resource exhaustion (bsc#1284073). - CVE-2026-18036: variable-time modulo and division operations in NTRU implementation can allow timing side-channel attacks (bsc#1284065). - CVE-2026-18040: table lookups and variable-time duplicate scanning in HQC can cause cache side-channel leaks (bsc#1284205). - CVE-2026-71885: unbound X.509 certificates in MLS LeafNode verification can cause identity impersonation and group message interception (bsc#1284165). - CVE-2026-71886: unvalidated CERTIFY_OTHER flags in OpenPGP subkeys can cause unauthorized trust delegations and identity spoofing (bsc#1284212). - CVE-2026-71887: missing primary key back-signature validation on subkeys can cause signature misattribution and trust context spoofing (bsc#1284213). - CVE-2026-71888: disagreement between digestAlgorithm and authAttrs in CMS parsing can cause unauthenticated attribute injection (bsc#1284215). - CVE-2026-71889: skipped leaf certificate evaluation in checkNameConstraints can cause X.509 name constraint bypasses (bsc#1284218). - CVE-2026-71890: unbounded Remove proposals in external MLS commits can cause arbitrary group member eviction and session takeover (bsc#1284219). - CVE-2026-71891: forged ECPoint curves in BLS12-381 key validation c
osv:SUSE-SU-2026:4797-1
bouncycastle
Fixed versions: 1.86-150200.3.41.1
bouncycastle
Fixed versions: 1.86-150200.3.41.1
bouncycastle
Fixed versions: 1.86-150200.3.41.1
bouncycastle
Fixed versions: 1.86-150200.3.41.1
bouncycastle
Fixed versions: 1.86-150200.3.41.1
bouncycastle
Fixed versions: 1.86-150200.3.41.1
bouncycastle
Fixed versions: 1.86-150200.3.41.1
bouncycastle
Fixed versions: 1.86-150200.3.41.1
bouncycastle
Fixed versions: 1.86-150200.3.41.1
bouncycastle
Fixed versions: 1.86-150200.3.41.1
bouncycastle
Fixed versions: 1.86-150200.3.41.1
Complete source record
{
"id": "0a8bc6d077dd5c45f1ffadc50edd828a354f1123944d50968260826693c36b19",
"url": "https://osv.dev/vulnerability/SUSE-SU-2026%3A4797-1",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Security update for bouncycastle",
"summary": "This update for bouncycastle fixes the following issues: - CVE-2026-17507: negative signed leaf_index values from unsigned wire encodings can cause heap exhaustion (bsc#1284075). - CVE-2026-17508: unbounded KDF iteration and memory parameters can cause resource exhaustion (bsc#1284073). - CVE-2026-18036: variable-time modulo and division operations in NTRU implementation can allow timing side-channel attacks (bsc#1284065). - CVE-2026-18040: table lookups and variable-time duplicate scanning in HQC can cause cache side-channel leaks (bsc#1284205). - CVE-2026-71885: unbound X.509 certificates in MLS LeafNode verification can cause identity impersonation and group message interception (bsc#1284165). - CVE-2026-71886: unvalidated CERTIFY_OTHER flags in OpenPGP subkeys can cause unauthorized trust delegations and identity spoofing (bsc#1284212). - CVE-2026-71887: missing primary key back-signature validation on subkeys can cause signature misattribution and trust context spoofing (bsc#1284213). - CVE-2026-71888: disagreement between digestAlgorithm and authAttrs in CMS parsing can cause unauthenticated attribute injection (bsc#1284215). - CVE-2026-71889: skipped leaf certificate evaluation in checkNameConstraints can cause X.509 name constraint bypasses (bsc#1284218). - CVE-2026-71890: unbounded Remove proposals in external MLS commits can cause arbitrary group member eviction and session takeover (bsc#1284219). - CVE-2026-71891: forged ECPoint curves in BLS12-381 key validation c",
"evidence": "osv:SUSE-SU-2026:4797-1",
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"package": {
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"purl": "pkg:rpm/suse/bouncycastle&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6",
"ecosystem": "SUSE:Linux Enterprise Server for SAP Applications 15 SP6"
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},
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],
"modified": "2026-10-21T20:02:15.286117133Z",
"provider": "osv",
"upstream": [
"CVE-2026-17507",
"CVE-2026-17508",
"CVE-2026-18036",
"CVE-2026-18040",
"CVE-2026-71885",
"CVE-2026-71886",
"CVE-2026-71887",
"CVE-2026-71888",
"CVE-2026-71889",
"CVE-2026-71890",
"CVE-2026-71891",
"CVE-2026-71892",
"CVE-2026-85515",
"CVE-2026-97873"
],
"references": [
"https://www.suse.com/support/update/announcement/2026/suse-su-20264797-1/",
"https://bugzilla.suse.com/1284065",
"https://bugzilla.suse.com/1284073",
"https://bugzilla.suse.com/1284075",
"https://bugzilla.suse.com/1284165",
"https://bugzilla.suse.com/1284205",
"https://bugzilla.suse.com/1284212",
"https://bugzilla.suse.com/1284213",
"https://bugzilla.suse.com/1284215",
"https://bugzilla.suse.com/1284218",
"https://bugzilla.suse.com/1284219",
"https://bugzilla.suse.com/1284220",
"https://bugzilla.suse.com/1284221",
"https://bugzilla.suse.com/1284222",
"https://bugzilla.suse.com/1284224",
"https://www.suse.com/security/cve/CVE-2026-17507",
"https://www.suse.com/security/cve/CVE-2026-17508",
"https://www.suse.com/security/cve/CVE-2026-18036",
"https://www.suse.com/security/cve/CVE-2026-18040",
"https://www.suse.com/security/cve/CVE-2026-71885",
"https://www.suse.com/security/cve/CVE-2026-71886",
"https://www.suse.com/security/cve/CVE-2026-71887",
"https://www.suse.com/security/cve/CVE-2026-71888",
"https://www.suse.com/security/cve/CVE-2026-71889",
"https://www.suse.com/security/cve/CVE-2026-71890",
"https://www.suse.com/security/cve/CVE-2026-71891",
"https://www.suse.com/security/cve/CVE-2026-71892",
"https://www.suse.com/security/cve/CVE-2026-85515",
"https://www.suse.com/security/cve/CVE-2026-97873"
]
},
"related_cves": [
{
"value": "CVE-2026-17507",
"evidence": "/upstream"
},
{
"value": "CVE-2026-17508",
"evidence": "/upstream"
},
{
"value": "CVE-2026-18036",
"evidence": "/upstream"
},
{
"value": "CVE-2026-18040",
"evidence": "/upstream"
},
{
"value": "CVE-2026-71885",
"evidence": "/upstream"
},
{
"value": "CVE-2026-71886",
"evidence": "/upstream"
},
{
"value": "CVE-2026-71887",
"evidence": "/upstream"
},
{
"value": "CVE-2026-71888",
"evidence": "/upstream"
},
{
"value": "CVE-2026-71889",
"evidence": "/upstream"
},
{
"value": "CVE-2026-71890",
"evidence": "/upstream"
},
{
"value": "CVE-2026-71891",
"evidence": "/upstream"
},
{
"value": "CVE-2026-71892",
"evidence": "/upstream"
},
{
"value": "CVE-2026-85515",
"evidence": "/upstream"
},
{
"value": "CVE-2026-97873",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 399323,
"published_at": "2026-10-21T07:54:59+00:00"
}