175 lines
7.4 KiB
JSON
175 lines
7.4 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-55078",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-06-16T14:33:35.711Z",
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"datePublished": "2026-07-07T22:47:07.079Z",
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"dateUpdated": "2026-07-08T13:55:16.017Z"
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},
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"containers": {
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"cna": {
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"title": "Coder: Zip upload decompression lacks aggregate size limit, enabling denial of service",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-409",
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"lang": "en",
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"description": "CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"cweId": "CWE-770",
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"lang": "en",
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"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 6.5,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/coder/coder/security/advisories/GHSA-2mg2-p7r7-g27f",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/coder/coder/security/advisories/GHSA-2mg2-p7r7-g27f"
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},
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{
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"name": "https://github.com/coder/coder/pull/25877",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/coder/coder/pull/25877"
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},
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{
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"name": "https://github.com/coder/coder/releases/tag/v2.29.17",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/coder/coder/releases/tag/v2.29.17"
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},
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{
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"name": "https://github.com/coder/coder/releases/tag/v2.32.7",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/coder/coder/releases/tag/v2.32.7"
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},
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{
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"name": "https://github.com/coder/coder/releases/tag/v2.33.8",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/coder/coder/releases/tag/v2.33.8"
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},
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{
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"name": "https://github.com/coder/coder/releases/tag/v2.34.2",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/coder/coder/releases/tag/v2.34.2"
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}
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],
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"affected": [
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{
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"vendor": "coder",
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"product": "coder",
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"versions": [
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{
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"version": ">= 2.34.0, < 2.34.2",
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"status": "affected"
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},
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{
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"version": ">= 2.33.0, < 2.33.8",
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"status": "affected"
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},
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{
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"version": ">= 2.30.0, < 2.32.7",
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"status": "affected"
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},
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{
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"version": ">= 2.17.0, < 2.29.17",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-07-07T22:47:07.079Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Coder allows organizations to provision remote development environments via Terraform. Starting in version 2.17.0 and prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, `POST /api/v2/files` converts zip uploads to tar in memory via `CreateTarFromZip`, which enforced a per-entry size limit but no aggregate limit on total decompressed output, writing to an unbounded in-memory buffer. Exploitation requires authenticated file-upload access and the impact is limited to availability (denial of service). The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2 adds a metadata preflight check that sums projected entry sizes and a streaming writer that enforces the aggregate limit during decompression. As a workaround, restrict file-upload permissions to trusted users or place a reverse proxy with request-body size limits in front of `coderd`."
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}
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],
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"source": {
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"advisory": "GHSA-2mg2-p7r7-g27f",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-07-08T13:54:48.796364Z",
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"id": "CVE-2026-55078",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-07-08T13:55:16.017Z"
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}
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}
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]
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}
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} |