CVE-2026-14742

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Source
https://cve.org/CVERecord?id=CVE-2026-14742
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-14742.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-14742
Published
2026-07-05T10:45:09.243Z
Modified
2026-07-08T08:03:27.516394646Z
Severity
  • 1.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P CVSS Calculator
Summary
langchain-ai langgraph Task Result Cache _cache.py _freeze weak hash
Details

A vulnerability was determined in langchain-ai langgraph up to 1.2.4. The affected element is the function _freeze of the file libs/langgraph/langgraph/internal/cache.py of the component Task Result Cache. This manipulation of the argument defaultcachekey causes use of weak hash. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/14xxx/CVE-2026-14742.json",
    "cwe_ids": [
        "CWE-327",
        "CWE-328"
    ],
    "cna_assigner": "VulDB"
}
References

Affected packages

Git / github.com/langchain-ai/langgraph

Affected ranges

Type
GIT
Repo
https://github.com/langchain-ai/langgraph
Events
Introduced
3614e88c58af63f597764218646e85c49952b2da
Last affected
054a6f3d8b48d022a4881af3ba3dc0ddc3ac0690
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "1.2.0"
        },
        {
            "last_affected": "1.2.0"
        },
        {
            "introduced": "1.2.1"
        },
        {
            "last_affected": "1.2.1"
        },
        {
            "introduced": "1.2.2"
        },
        {
            "last_affected": "1.2.2"
        },
        {
            "introduced": "1.2.3"
        },
        {
            "last_affected": "1.2.3"
        },
        {
            "introduced": "1.2.4"
        },
        {
            "last_affected": "1.2.4"
        }
    ]
}

Affected versions

1.*
1.2.0
1.2.1
1.2.2
1.2.3
1.2.4
checkpoint==4.*
checkpoint==4.1.0
checkpoint==4.1.1
checkpointpostgres==3.*
checkpointpostgres==3.1.0
checkpointsqlite==3.*
checkpointsqlite==3.1.0
cli==0.*
cli==0.4.27
prebuilt==1.*
prebuilt==1.1.0
sdk==0.*
sdk==0.3.15
sdk==0.4.0
sdk==0.4.1
sdk==0.4.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-14742.json"