High
rust-openssl — security advisory
rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.24 to before 0.10.78, the FFI trampolines behind SslContextBuilder::set_psk_client_callback, set_psk_server_callback, set_cookie_generate_cb, and set_stateless_cookie_generate_cb forwarded the user closure's returned usize directly to OpenSSL without checking it against the &mut [u8] that was handed to the closure. This can lead to buffer overflows and other unintended consequences. This vulnerability is fixed in 0.10.78.
- Products
- rust-openssl
- Affected versions
- 0.10.23-1, 0.10.23-1ubuntu0.1~esm1, 0.10.29-1, 0.10.36-1, 0.10.36-1ubuntu0.1~esm1, 0.10.45-1, 0.10.57-1, 0.10.57-1ubuntu0.1~esm1, 0.10.70-1, 0.10.72-1, 0.10.73-1, 0.10.81-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-41898
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:02 UTC · Revision 1
Source evidence
rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.24 to before 0.10.78, the FFI trampolines behind SslContextBuilder::set_psk_client_callback, set_psk_server_callback, set_cookie_generate_cb, and set_stateless_cookie_generate_cb forwarded the user closure's returned usize directly to OpenSSL without checking it against the &mut [u8] that was handed to the closure. This can lead to buffer overflows and other unintended consequences. This vulnerability is fixed in 0.10.78.
osv:UBUNTU-CVE-2026-41898
rust-openssl
Fixed versions: Not specified
rust-openssl
Fixed versions: Not specified
rust-openssl
Fixed versions: Not specified
rust-openssl
Fixed versions: Not specified
rust-openssl
Fixed versions: Not specified
rust-openssl
Fixed versions: Not specified
Complete source record
{
"id": "84e94d8a2d5276051d9139c4b5972195c847af3a78d77ae4e1629a2d974e9cce",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-41898",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-41898",
"summary": "rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.24 to before 0.10.78, the FFI trampolines behind SslContextBuilder::set_psk_client_callback, set_psk_server_callback, set_cookie_generate_cb, and set_stateless_cookie_generate_cb forwarded the user closure's returned usize directly to OpenSSL without checking it against the &mut [u8] that was handed to the closure. This can lead to buffer overflows and other unintended consequences. This vulnerability is fixed in 0.10.78.",
"evidence": "osv:UBUNTU-CVE-2026-41898",
"products": [
{
"name": {
"value": "rust-openssl",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "0.10.23-1",
"evidence": "/affected/0/versions"
},
{
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"evidence": "/affected/0/versions"
}
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{
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{
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{
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{
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{
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"evidence": "/affected/5/versions"
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{
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}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-41898",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
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"events": [
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}
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],
"package": {
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"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
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"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41898.json"
},
"ecosystem_specific": {
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"versions": [
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"package": {
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"ecosystem": "Ubuntu:Pro:24.04:LTS"
},
"versions": [
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},
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],
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},
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],
"modified": "2026-10-17T13:00:04.176347439Z",
"provider": "osv",
"upstream": [
"CVE-2026-41898"
],
"references": [
"https://ubuntu.com/security/CVE-2026-41898",
"https://www.cve.org/CVERecord?id=CVE-2026-41898",
"https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-hppc-g8h3-xhp3",
"https://github.com/rust-openssl/rust-openssl/pull/2607",
"https://github.com/rust-openssl/rust-openssl/commit/1d109020d98fff2fb2e45c39a373af3dff99b24c"
]
},
"related_cves": [
{
"value": "CVE-2026-41898",
"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360244,
"published_at": "2026-04-24T18:16:00+00:00"
}