CVE-2026-101049

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Source
https://cve.org/CVERecord?id=CVE-2026-101049
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-101049.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-101049
Aliases
Published
2026-09-27T16:28:28Z
Modified
2026-09-28T03:55:45Z
Severity
  • 8.3 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Heym before 0.0.53 Slack Webhook Signature Verification Bypass
Details

Heym before 0.0.53 fails to verify Slack request signatures when trigger nodes lack credential IDs or have empty signing secrets. Remote unauthenticated attackers can send forged Slack events to known webhook URLs to trigger workflows with the owner's credentials.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-287"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101049.json"
}
References

Affected packages

Git / github.com/heymrun/heym

Affected ranges

Type
GIT
Repo
https://github.com/heymrun/heym
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
a8ff9b0ed2a0e87a1b66be56ca0a0ea877e19402
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "0.0.53"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

v.*
v.0.0.49
v0.*
v0.0.1
v0.0.10
v0.0.11
v0.0.12
v0.0.13
v0.0.14
v0.0.15
v0.0.16
v0.0.17
v0.0.18
v0.0.19
v0.0.2
v0.0.20
v0.0.21
v0.0.22
v0.0.23
v0.0.24
v0.0.25
v0.0.26
v0.0.27
v0.0.29
v0.0.3
v0.0.30
v0.0.31
v0.0.32
v0.0.33
v0.0.34
v0.0.35
v0.0.36
v0.0.37
v0.0.38
v0.0.39
v0.0.4
v0.0.40
v0.0.41
v0.0.42
v0.0.43
v0.0.44
v0.0.45
v0.0.46
v0.0.47
v0.0.48
v0.0.5
v0.0.50
v0.0.51
v0.0.52
v0.0.6
v0.0.7
v0.0.8
v0.0.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-101049.json"