Medium
Vault Vulnerable to Cache-Timing Attacks During Seal and Unseal Operations
Type: advisorySources: OSV
HashiCorp Vault's implementation of Shamir's secret sharing used precomputed table lookups, and was vulnerable to cache-timing attacks. An attacker with access to, and the ability to observe a large number of unseal operations on the host through a side channel may reduce the search space of a brute force effort to recover the Shamir shares. Fixed in Vault 1.13.1, 1.12.5, and 1.11.9.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2023-25000
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 01:25 UTC · Revision 1
Source evidence
Vault Vulnerable to Cache-Timing Attacks During Seal and Unseal Operations
core-osv · Original sourcePublished 30 Mar 2023, 00:17 UTC
HashiCorp Vault's implementation of Shamir's secret sharing used precomputed table lookups, and was vulnerable to cache-timing attacks. An attacker with access to, and the ability to observe a large number of unseal operations on the host through a side channel may reduce the search space of a brute force effort to recover the Shamir shares. Fixed in Vault 1.13.1, 1.12.5, and 1.11.9.
osv:CVE-2023-25000
Complete source record
{
"id": "6cec3e7a20c9163d32f391736186957924da88af8f9e5e39464743c2e039ac46",
"url": "https://osv.dev/vulnerability/CVE-2023-25000",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Vault Vulnerable to Cache-Timing Attacks During Seal and Unseal Operations",
"summary": "HashiCorp Vault's implementation of Shamir's secret sharing used precomputed table lookups, and was vulnerable to cache-timing attacks. An attacker with access to, and the ability to observe a large number of unseal operations on the host through a side channel may reduce the search space of a brute force effort to recover the Shamir shares. Fixed in Vault 1.13.1, 1.12.5, and 1.11.9.",
"evidence": "osv:CVE-2023-25000",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2023-25000",
"aliases": [
"BIT-vault-2023-25000",
"CVE-2023-25000",
"GHSA-vq4h-9ghm-qmrr",
"GO-2023-1709"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/hashicorp/vault",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "3eed40f0ee74c44f439c2277e010a234eecc491b"
},
{
"introduced": "558abfa75702b5dab4c98e86b802fb9aef43b0eb"
},
{
"fixed": "acc381a27bf365353b1b325838f7f1c273175788"
},
{
"introduced": "a4cf0dc4437de35fce4860857b64569d092a9b5a"
},
{
"fixed": "4472e4a3fbcc984b7e3dc48f5a8283f3efe6f282"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.11.9"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.11.9"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*",
"range": [
{
"introduced": "1.12.0"
},
{
"fixed": "1.12.5"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*",
"range": [
{
"introduced": "1.12.0"
},
{
"fixed": "1.12.5"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*",
"range": [
{
"introduced": "1.13.0"
},
{
"fixed": "1.13.1"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*",
"range": [
{
"introduced": "1.13.0"
},
{
"fixed": "1.13.1"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v1.11.8",
"v1.13.0",
"v1.12.4",
"v1.11.7",
"v1.12.3",
"v1.11.6",
"v1.12.2",
"v1.11.5",
"v1.12.1",
"v1.12.0",
"v1.11.4",
"v1.11.3",
"v1.11.2",
"v1.11.1",
"v1.11.0",
"sdk/v0.5.2",
"v1.11.0-rc1",
"api/v1.6.0",
"sdk/v0.5.0",
"api/v1.5.0",
"sdk/v0.4.1",
"last-go-modable",
"api/auth/ldap/v0.1.0",
"api/v1.3.1",
"api/auth/approle/v0.1.1",
"main-creation",
"api/auth/gcp/v0.1.0",
"api/auth/azure/v0.1.0",
"api/auth/userpass/v0.1.0",
"api/auth/kubernetes/v0.1.0",
"api/auth/aws/v0.1.0",
"api/auth/approle/v0.1.0",
"sdk/v0.3.0",
"api/v1.2.0",
"api/v1.1.1",
"sdk/v0.2.1",
"v1.2.0",
"v1.2.0-rc1",
"api/v1.0.4",
"sdk/v0.1.13",
"api/v1.0.3",
"sdk/v0.1.12",
"v1.2.0-beta2",
"v1.2.0-beta1",
"sdk/v0.1.11",
"sdk/v0.1.10",
"api/v1.0.2",
"v1.1.1",
"sdk/v0.1.9",
"api/v1.0.1",
"sdk/v0.1.8",
"v1.1.0",
"v1.1.0-beta2",
"v1.1.0-beta1",
"v1.0.3",
"v1.0.2",
"v1.0.1",
"v0.10.2",
"v1.0.0",
"v1.0.0-rc1",
"v1.0.0-beta2",
"v1.0.0-beta1",
"v0.11.2",
"v0.11.1",
"v0.11.0",
"v0.11.0-beta1",
"v0.10.4",
"v0.10.3",
"v0.10.1",
"v0.10.0",
"v0.10.0-rc1",
"v0.9.6",
"v0.9.5",
"v0.9.4",
"v0.9.2",
"v0.9.1",
"v0.9.0",
"v0.8.3",
"v0.8.2",
"v0.8.1",
"v0.8.0",
"v0.8.0-rc1",
"v0.8.0-beta1",
"v0.7.3",
"v0.7.2",
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"v0.6.1-rc2",
"v0.6.1-rc1",
"v0.6.0-rebuild",
"v0.6.0",
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"v0.5.0-rc1.2",
"v0.5.0-rc1.1",
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"v0.4.0",
"v0.4.0-rc1",
"v0.3.1",
"v0.3.0",
"v0.3.0-rc",
"v0.2.0",
"v0.2.0.rc1",
"v0.1.2",
"v0.1.1",
"v0.1.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-25000.json"
}
}
],
"modified": "2026-10-28T02:30:24.934054264Z",
"provider": "osv",
"references": [
"https://discuss.hashicorp.com/t/hcsec-2023-10-vault-vulnerable-to-cache-timing-attacks-during-seal-and-unseal-operations/52078",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/25xxx/CVE-2023-25000.json",
"https://nvd.nist.gov/vuln/detail/CVE-2023-25000",
"https://security.netapp.com/advisory/ntap-20230526-0008/",
"https://github.com/hashicorp/vault"
],
"provider_metadata": {
"cwe_ids": [
"CWE-208"
],
"cna_assigner": "HashiCorp",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/25xxx/CVE-2023-25000.json"
}
},
"related_cves": [
{
"value": "CVE-2023-25000",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 491622,
"published_at": "2023-03-30T00:17:46.23+00:00"
}