CVE-2026-46597 (GCVE-0-2026-46597)
Vulnerability from cvelistv5
Published
2026-05-22 02:31
Modified
2026-05-22 14:08
Severity ?
VLAI Severity ?
EPSS score ?
Summary
An incorrectly placed cast from bytes to int allowed for server-side panic in the AES-GCM packet decoder for well-crafted inputs.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Version: 0 ≤ |
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"id": "CVE-2026-46597",
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{
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"role": "CISA Coordinator",
"timestamp": "2026-05-22T14:08:24.589026Z",
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{
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{
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{
"name": "NewServerConn"
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{
"name": "curve25519sha256.Client"
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{
"name": "curve25519sha256.Server"
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{
"name": "dhGEXSHA.Client"
},
{
"name": "dhGEXSHA.Server"
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{
"name": "dhGroup.Client"
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{
"name": "dhGroup.Server"
},
{
"name": "ecdh.Client"
},
{
"name": "ecdh.Server"
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{
"name": "mlkem768WithCurve25519sha256.Client"
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{
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"versions": [
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"descriptions": [
{
"description": "CWE-191: Integer Underflow (Wrap or Wraparound)",
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"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
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"references": [
{
"url": "https://go.dev/issue/79561"
},
{
"url": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI"
},
{
"url": "https://go.dev/cl/781620"
},
{
"url": "https://pkg.go.dev/vuln/GO-2026-5013"
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"title": "Invoking byte arithmetic causes underflow and panic in golang.org/x/crypto/ssh"
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"datePublished": "2026-05-22T02:31:26.754Z",
"dateReserved": "2026-05-15T17:35:00.813Z",
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"state": "PUBLISHED"
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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