CVE-2026-77938

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Source
https://cve.org/CVERecord?id=CVE-2026-77938
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-77938.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-77938
Published
2026-10-20T00:46:15Z
Modified
2026-10-20T10:47:14Z
Severity
  • 7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Letta through 0.16.8 Credential Exposure via Tool Sandbox Environment Inheritance
Details

Letta through 0.16.8 contains an information disclosure vulnerability that allows users running tools to read server secrets because LocalSandbox subprocesses inherit the full server environment. Attackers can run code via POST /v1/tools/run or custom tools to read LETTA_PG_URI, POSTGRES_PASSWORD, and provider API keys, then access cross-tenant database data.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-526"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77938.json"
}
References

Affected packages

Git / github.com/letta-ai/letta

Affected ranges

Type
GIT
Repo
https://github.com/letta-ai/letta
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
1131535716e8a31c9a437f8695e25ac98f203a24
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "0.16.8"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        }
    ]
}

Affected versions

0.*
0.1.12
0.1.13
0.1.14
0.1.15
0.1.6
0.10.0
0.10.1
0.11.0
0.11.1
0.11.2
0.11.3
0.11.4
0.11.5
0.11.6
0.11.7
0.12.0
0.12.1
0.13.0
0.14.0
0.15.0
0.15.1
0.16.0
0.16.1
0.16.2
0.16.4
0.16.5
0.16.6
0.16.7
0.16.8
0.2.0
0.2.1
0.2.10
0.2.11
0.2.2
0.2.3
0.2.4
0.2.5
0.2.6
0.2.7
0.2.8
0.2.9
0.3
0.3.1
0.3.10
0.3.11
0.3.12
0.3.13
0.3.14
0.3.15
0.3.16
0.3.17
0.3.18
0.3.19
0.3.2
0.3.20
0.3.21
0.3.22
0.3.23
0.3.24
0.3.3
0.3.4
0.3.5
0.3.6
0.3.7
0.3.8
0.3.9
0.4.0
0.4.1
0.5.0
0.5.1
0.5.2
0.5.3
0.5.4
0.6.0
0.6.1
0.6.10
0.6.11
0.6.12
0.6.13
0.6.14
0.6.15
0.6.16
0.6.17
0.6.18
0.6.19
0.6.2
0.6.20
0.6.21
0.6.22
0.6.23
0.6.24
0.6.25
0.6.26
0.6.27
0.6.28
0.6.29
0.6.3
0.6.30
0.6.31
0.6.32
0.6.33
0.6.34
0.6.35
0.6.36
0.6.37
0.6.39
0.6.4
0.6.40
0.6.41
0.6.42
0.6.43
0.6.44
0.6.45
0.6.46
0.6.47
0.6.48
0.6.49
0.6.5
0.6.50
0.6.51
0.6.52
0.6.53
0.6.54
0.6.6
0.6.7
0.6.8
0.6.9
0.7.0
0.7.1
0.7.10
0.7.11
0.7.12
0.7.13
0.7.14
0.7.15
0.7.16
0.7.17
0.7.18
0.7.19
0.7.2
0.7.20
0.7.21
0.7.22
0.7.23
0.7.24
0.7.25
0.7.26
0.7.27
0.7.28
0.7.29
0.7.3
0.7.4
0.7.5
0.7.6
0.7.7
0.7.8
0.7.9
0.8.0
0.8.1
0.8.10
0.8.11
0.8.12
0.8.13
0.8.14
0.8.15
0.8.16
0.8.17
0.8.2
0.8.3
0.8.4
0.8.5
0.8.6
0.8.7
0.8.8
0.8.9
0.9.0
0.9.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-77938.json"