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Vulnerability from cleanstart
Published
2026-06-10 01:04
Modified
2026-06-09 06:34
Summary
During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succ...
Details
Multiple security vulnerabilities affect the rancher-agent package. During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. See references for individual vulnerability details.
Severity
9.8 (Critical)
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"id": "CLEANSTART-2026-BL76821",
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}
CVE-2025-61732 (GCVE-0-2025-61732)
Vulnerability from cvelistv5 – Published: 2026-02-05 03:42 – Updated: 2026-06-30 12:07
VLAI
EPSS
Title
Potential code smuggling via doc comments in cmd/cgo
Summary
A discrepancy between how Go and C/C++ comments were parsed allowed for code smuggling into the resulting cgo binary.
Severity
8.6 (High)
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
38 references
Impacted products
34 products
Credits
RyotaK (https://ryotak.net) of GMO Flatt Security Inc.
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"lang": "en",
"time": "2026-02-05T03:42:26.392Z",
"value": "Made public."
}
],
"title": "cmd/cgo: Go cgo: Code smuggling due to comment parsing discrepancy",
"x_adpType": "supplier",
"x_generator": {
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],
"cna": {
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"packageName": "cmd/cgo",
"product": "cmd/cgo",
"vendor": "Go toolchain",
"versions": [
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"credits": [
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"lang": "en",
"value": "RyotaK (https://ryotak.net) of GMO Flatt Security Inc."
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"descriptions": [
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"lang": "en",
"value": "A discrepancy between how Go and C/C++ comments were parsed allowed for code smuggling into the resulting cgo binary."
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"problemTypes": [
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"description": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)",
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CVE-2025-68121 (GCVE-0-2025-68121)
Vulnerability from cvelistv5 – Published: 2026-02-05 17:48 – Updated: 2026-04-29 13:29
VLAI
EPSS
Title
Unexpected session resumption in crypto/tls
Summary
During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the returned Config, or uses Config.GetConfigForClient. This can cause a client to resume a session with a server that it would not have resumed with during the initial handshake, or cause a server to resume a session with a client that it would not have resumed with during the initial handshake.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | crypto/tls |
Affected:
0 , < 1.24.13
(semver)
Affected: 1.25.0-0 , < 1.25.7 (semver) Affected: 1.26.0-rc.1 , < 1.26.0-rc.3 (semver) |
Credits
Coia Prant (github.com/rbqvq)
Go Security Team
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"collectionURL": "https://pkg.go.dev",
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"packageName": "crypto/tls",
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{
"name": "Conn.handshakeContext"
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{
"name": "Conn.HandshakeContext"
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{
"name": "Conn.Read"
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{
"name": "Conn.Write"
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{
"name": "Dial"
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{
"name": "DialWithDialer"
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"name": "QUICConn.Start"
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Trend slope:
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(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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