CVE-2026-81849

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Source
https://cve.org/CVERecord?id=CVE-2026-81849
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81849.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-81849
Published
2026-08-28T18:02:33.468Z
Modified
2026-08-30T03:48:22.047262573Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Path traversal in the aws:downloadContent plugin in amazon-ssm-agent
Details

Improper limitation of a pathname to a restricted directory in the aws:downloadContent plugin in amazon-ssm-agent before 3.3.4515.0 might allow an authenticated remote user whose ssm:SendCommand permission is restricted to the AWS-DownloadContent document, to write arbitrary files outside the intended download directory with root privileges, via crafted object keys in the S3 source the document is directed to retrieve. This issue may lead to arbitrary code execution as root if specific sensitive files are overwritten.

To remediate this issue, customers should upgrade amazon-ssm-agent to version 3.3.4515.0 or later.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81849.json",
    "cwe_ids": [
        "CWE-23"
    ],
    "cna_assigner": "AMZN"
}
References

Affected packages

Git / github.com/aws/amazon-ssm-agent

Affected ranges

Type
GIT
Repo
https://github.com/aws/amazon-ssm-agent
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
b8acce1284383abb5ee86089912968b9af7c4025
Database specific
Show details 
{
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.3.4515.0"
        }
    ]
}

Affected versions

2.*
2.0.599.0
2.0.672.0
2.0.755.0
2.0.767.0
2.0.790.0
2.0.796.0
2.0.805.0
2.2.325.0
2.2.355.0
2.2.392.0
2.2.493.0
2.2.546.0
2.2.607.0
2.2.619.0
2.2.800.0
2.3.117.0
2.3.136.0
2.3.193.0
2.3.50.0
2.3.68.0
3.*
3.0.1031.0
3.0.1124.0
3.0.1181.0
3.0.1209.0
3.0.1295.0
3.0.1390.0
3.0.222.0
3.0.502.0
3.0.529.0
3.0.603.0
3.0.655.0
3.0.732.0
3.0.755.0
3.0.854.0
3.0.882.0
3.1.1004.0
3.1.1045.0
3.1.1080.0
3.1.1141.0
3.1.1188.0
3.1.1208.0
3.1.1260.0
3.1.127.0
3.1.1374.0
3.1.1446.0
3.1.1476.0
3.1.1511.0
3.1.1575.0
3.1.1634.0
3.1.1732.0
3.1.1767.0
3.1.1856.0
3.1.192.0
3.1.1927.0
3.1.282.0
3.1.338.0
3.1.426.0
3.1.459.0
3.1.501.0
3.1.630.0
3.1.634.0
3.1.715.0
3.1.804.0
3.1.821.0
3.1.90.0
3.1.941.0
3.2.1041.0
3.2.1186.0
3.2.1241.0
3.2.1297.0
3.2.1377.0
3.2.1478.0
3.2.1542.0
3.2.1630.0
3.2.1705.0
3.2.1798.0
3.2.183.0
3.2.2016.0
3.2.2086.0
3.2.2143.0
3.2.2222.0
3.2.286.0
3.2.345.0
3.2.419.0
3.2.532.0
3.2.574.0
3.2.582.0
3.2.815.0
3.2.923.0
3.2.985.0
3.3.1142.0
3.3.1230.0
3.3.131.0
3.3.1311.0
3.3.1345.0
3.3.1611.0
3.3.1802.0
3.3.1957.0
3.3.217.0
3.3.2299.0
3.3.2471.0
3.3.2656.0
3.3.2746.0
3.3.2958.0
3.3.3050.0
3.3.3185.0
3.3.3270.0
3.3.337.0
3.3.3572.0
3.3.3598.0
3.3.3797.0
3.3.380.0
3.3.3883.0
3.3.40.0
3.3.4108.0
3.3.4121.0
3.3.4177.0
3.3.418.0
3.3.4268.0
3.3.4364.0
3.3.484.0
3.3.551.0
3.3.808.0
3.3.859.0
3.3.987.0
v1.*
v1.1.145.0
v1.1.146.0
v1.2.252.0
v1.2.290.0
v2.*
v2.0.633.0
v2.0.755.0
v3.*
v3.3.3050.0
v3.3.3270.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81849.json"