High severity7.5NVD Advisory· Published Mar 20, 2026· Updated Jun 17, 2026

CVE-2026-33143

Description

OneUptime is a solution for monitoring and managing online services. Prior to version 10.0.34, the WhatsApp POST webhook handler (/notification/whatsapp/webhook) processes incoming status update events without verifying the Meta/WhatsApp X-Hub-Signature-256 HMAC signature, allowing any unauthenticated attacker to send forged webhook payloads that manipulate notification delivery status records, suppress alerts, and corrupt audit trails. The codebase already implements proper signature verification for Slack webhooks. This issue has been patched in version 10.0.34.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
oneuptimenpm	< 10.0.34	10.0.34

Affected products

Hackerbay/Oneuptime
cpe:2.3:a:hackerbay:oneuptime:*:*:*:*:*:*:*:*
Range: <10.0.34
ghsa-coords
pkg:npm/oneuptime
Range: < 10.0.34
Oneuptime/Oneuptimecpe-rescue
Range: < 10.0.34

Patches

Vulnerability mechanics

References

github.com/OneUptime/oneuptime/security/advisories/GHSA-g5ph-f57v-mwjcnvdExploitVendor AdvisoryWEB
github.com/advisories/GHSA-g5ph-f57v-mwjcghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2026-33143ghsaADVISORY

News mentions

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cvss	0.488
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000