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NVD Vulnerability Details :
CVE-2026-55078
Analyzed
More InfoOfficial Page
Source-security-advisories@github.com
View Known Exploited Vulnerability (KEV) details
Published At-07 Jul, 2026 | 23:16
Updated At-08 Jul, 2026 | 19:45

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`.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
N/A
Type: Secondary
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Type: N/A
Version:
Base score:
Base severity: N/A
Vector:
CPE Matches

coder
coder
>>coder>>Versions from 2.17.0(inclusive) to 2.29.17(exclusive)
cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*
coder
coder
>>coder>>Versions from 2.30.0(inclusive) to 2.32.7(exclusive)
cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*
coder
coder
>>coder>>Versions from 2.33.0(inclusive) to 2.33.8(exclusive)
cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*
coder
coder
>>coder>>Versions from 2.34.0(inclusive) to 2.34.2(exclusive)
cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*
Weaknesses
CWE IDTypeSource
CWE-409Secondarysecurity-advisories@github.com
CWE-770Secondarysecurity-advisories@github.com
CWE ID: CWE-409
Type: Secondary
Source: security-advisories@github.com
CWE ID: CWE-770
Type: Secondary
Source: security-advisories@github.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/coder/coder/pull/25877security-advisories@github.com
Issue Tracking
Patch
https://github.com/coder/coder/releases/tag/v2.29.17security-advisories@github.com
Release Notes
https://github.com/coder/coder/releases/tag/v2.32.7security-advisories@github.com
Release Notes
https://github.com/coder/coder/releases/tag/v2.33.8security-advisories@github.com
Release Notes
https://github.com/coder/coder/releases/tag/v2.34.2security-advisories@github.com
Release Notes
https://github.com/coder/coder/security/advisories/GHSA-2mg2-p7r7-g27fsecurity-advisories@github.com
Patch
Vendor Advisory
Hyperlink: https://github.com/coder/coder/pull/25877
Source: security-advisories@github.com
Resource:
Issue Tracking
Patch
Hyperlink: https://github.com/coder/coder/releases/tag/v2.29.17
Source: security-advisories@github.com
Resource:
Release Notes
Hyperlink: https://github.com/coder/coder/releases/tag/v2.32.7
Source: security-advisories@github.com
Resource:
Release Notes
Hyperlink: https://github.com/coder/coder/releases/tag/v2.33.8
Source: security-advisories@github.com
Resource:
Release Notes
Hyperlink: https://github.com/coder/coder/releases/tag/v2.34.2
Source: security-advisories@github.com
Resource:
Release Notes
Hyperlink: https://github.com/coder/coder/security/advisories/GHSA-2mg2-p7r7-g27f
Source: security-advisories@github.com
Resource:
Patch
Vendor Advisory
Change History
0Changes found

Details not found