Coder before 2.29.21, 2.34.12, 2.35.9, 2.36.7, and 2.37.4 Missing Audience Validation in GCP Instance-Identity Authentication
Impact
Coder versions before 2.29.21, 2.34.12, 2.35.9, 2.36.7, and 2.37.4 have a missing audience validation weakness in GCP instance-identity authentication. Attackers may replay an unexpired identity token to obtain a workspace agent's session token. The weakness is described as an unintended proxy or intermediary issue.
Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.Affected packages
Affected products
Vendor version evidence. Product records are separate from automatic dependency matching.
coder · VulnCheck
coder
2 ranges
coder · VulnCheck
coder
Package identity
pkg:golang/github.com/coder/coder/v2Explore github.com/coder/coder/v2 →Identity supplied by VulnCheck. Version matching requires compatible range evidence.
Compare with this publisher’s ranges. This does not inspect your installation.
affected
2.37.0 → before 2.37.4
semver versions
unaffected
2.37.4
semver versions
Other versions: unaffected
coder · VulnCheck
coder
2 ranges
coder · VulnCheck
coder
Package identity
pkg:golang/github.com/coder/coder/v2Explore github.com/coder/coder/v2 →Identity supplied by VulnCheck. Version matching requires compatible range evidence.
Compare with this publisher’s ranges. This does not inspect your installation.
affected
2.36.0 → before 2.36.7
semver versions
unaffected
2.36.7
semver versions
Other versions: unaffected
coder · VulnCheck
coder
2 ranges
coder · VulnCheck
coder
Package identity
pkg:golang/github.com/coder/coder/v2Explore github.com/coder/coder/v2 →Identity supplied by VulnCheck. Version matching requires compatible range evidence.
Compare with this publisher’s ranges. This does not inspect your installation.
affected
2.35.0 → before 2.35.9
semver versions
unaffected
2.35.9
semver versions
Other versions: unaffected
coder · VulnCheck
coder
2 ranges
coder · VulnCheck
coder
Package identity
pkg:golang/github.com/coder/coder/v2Explore github.com/coder/coder/v2 →Identity supplied by VulnCheck. Version matching requires compatible range evidence.
Compare with this publisher’s ranges. This does not inspect your installation.
affected
2.30.0 → before 2.34.12
semver versions
unaffected
2.34.12
semver versions
Other versions: unaffected
coder · VulnCheck
coder
2 ranges
coder · VulnCheck
coder
Package identity
pkg:golang/github.com/coder/coder/v2Explore github.com/coder/coder/v2 →Identity supplied by VulnCheck. Version matching requires compatible range evidence.
Compare with this publisher’s ranges. This does not inspect your installation.
affected
0 → before 2.29.21
semver versions
unaffected
2.29.21
semver versions
Other versions: unaffected
Original source description
Coder before 2.29.21, 2.30.0 before 2.34.12, 2.35.0 before 2.35.9, 2.36.0 before 2.36.7, and 2.37.0 before 2.37.4 does not validate the audience claim of GCE instance-identity JWTs at the POST /api/v2/workspaceagents/google-instance-identity endpoint. Attackers who obtain an unexpired format=full identity token minted for another relying party can replay it to obtain that workspace agent's session token, which remains valid until the workspace's next build.
Inside the record
Evidence available
Describes the evidence in this view, not whether the product is safe.
Original records
CVE-2026-118687View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.
cve.new JSON →Underlying weaknesses
The source’s classification of what caused the vulnerability.
Environment requirements
These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.
VulnCheck · platform conditions
Any condition may hold
Vulnerable product
cpe:2.3:a:coder:coder:*:*:*:*:*:*:*:*From (inclusive): 2.37.0
Before: 2.37.4
Any condition may hold
Vulnerable product
cpe:2.3:a:coder:coder:*:*:*:*:*:*:*:*From (inclusive): 2.36.0
Before: 2.36.7
Any condition may hold
Vulnerable product
cpe:2.3:a:coder:coder:*:*:*:*:*:*:*:*From (inclusive): 2.35.0
Before: 2.35.9
Any condition may hold
Vulnerable product
cpe:2.3:a:coder:coder:*:*:*:*:*:*:*:*From (inclusive): 2.30.0
Before: 2.34.12
Any condition may hold
Vulnerable product
cpe:2.3:a:coder:coder:*:*:*:*:*:*:*:*Before: 2.29.21
Original applicability statements
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"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:coder:coder:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.37.0",
"versionEndExcluding": "2.37.4"
}
]
}
]
},
{
"nodes": [
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"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:coder:coder:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "2.36.7"
}
]
}
]
},
{
"nodes": [
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"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:coder:coder:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.35.0",
"versionEndExcluding": "2.35.9"
}
]
}
]
},
{
"nodes": [
{
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"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:coder:coder:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.30.0",
"versionEndExcluding": "2.34.12"
}
]
}
]
},
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
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"criteria": "cpe:2.3:a:coder:coder:*:*:*:*:*:*:*:*",
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}
]
}
]
}
]Contributing organizations · 2
Assigning organization
Additional data publisher
What changed
Follow changes- CVE · CVE-2026-118687
Observed 2026-10-29T21:32:47.670Z · upstream updated 2026-10-29T20:54:16.473Z
Prioritization updated
before
[]
after
[ { "source": "CISA-ADP", "type": "SSVC", "role": "CISA Coordinator", "timestamp": "2026-10-29T15:28:59.226439Z", "decisions": [ { "name": "Exploitation", "value": "none" }, { "name": "Automatable", "value": "no" }, { "name": "Technical Impact", "value": "partial" } ] } ]
Large field values are marked as truncated previews. Original source snapshots remain retained.
Showing up to 50 most recent observed changes.