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OpenClaw < 2026.3.28 - Unauthorized Media Download via Zalo Channel

CVSS 4.0 6.9 MEDIUMCVSS 3.1 6.5 MEDIUMEUVD CVSS 4.0 6.9 CVSS 4.0 · [email protected] · Secondary 6.9 MEDIUMCVSS 3.1 · [email protected] · Secondary 6.5 MEDIUMCVSS_V3 CVSS_V4 Publisher rating MODERATEFixed by openclaw 2026.3.28KEV status unknown

cve-program · CVE-2026-33576

Published

OpenClaw before 2026.3.28 downloads and stores inbound media from Zalo channels before validating sender authorization. Unauthorized senders can force network fetches and disk writes to the media store by sending messages that are subsequently rejected.

Read the publisher's advisory

euvd · EUVD-2026-17431

Published

OpenClaw before 2026.3.28 downloads and stores inbound media from Zalo channels before validating sender authorization. Unauthorized senders can force network fetches and disk writes to the media store by sending messages that are subsequently rejected.

Read the publisher's advisory

nvd · CVE-2026-33576

Published

OpenClaw before 2026.3.28 downloads and stores inbound media from Zalo channels before validating sender authorization. Unauthorized senders can force network fetches and disk writes to the media store by sending messages that are subsequently rejected.

Read the publisher's advisory

osv · GHSA-v2v2-f783-358j

Published

## Summary The Zalo image path fetched and stored inbound media before the DM/pairing authorization checks ran. ## Impact Unauthorized senders could force network fetches and disk writes in the inbound media store even when the message itself was rejected. ## Affected Component `extensions/zalo/src/monitor.ts` ## Fixed Versions - Affected: `<= 2026.3.24` - Patched: `>= 2026.3.28` - Latest stable `2026.3.28` contains the fix. ## Fix Fixed by commit `68ceaf7a5f` (`zalo: gate image downloads before DM auth`). OpenClaw thanks @AntAISecurityLab for reporting.

Read the publisher's advisory

Affected versions, risk and source history

Exploitation and risk

Source status

CISA KEV lists vulnerabilities known to be exploited. FIRST EPSS estimates the likelihood of exploitation in the next 30 days. An unavailable score does not mean zero risk.

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Risk history

Compare earlier KEV listings and daily EPSS scores. Advisory wording and affected versions have a separate history.

When does an EPSS score appear as a change?

A prediction change is reported when EPSS rises from below 10% to 10% or higher. Other daily score changes remain in this history.

Advisory history

11 saved versions

See how the publisher's advisory changed over time. Each link opens the version saved at that time. The publisher's update date can differ from the date shown here.

How advisory history works

Each link identifies one complete publisher record. History can include advisories that previously shared an identifier; an identifier removed by a publisher no longer establishes a current relationship. A historical link shows only that record and earlier saved versions. Failed checks and unchanged reads do not create new versions.

11 Nov 2026 08:38:00 UTC

OpenClaw before 2026.3.28 downloads and stores inbound media from Zalo channels before validating sender authorization. Unauthorized senders can force network fetches and disk writes to the media store by sending messages that are subsequen…

euvd · EUVD-2026-17431 · Published

9 Nov 2026 08:12:03 UTC

OpenClaw before 2026.3.28 downloads and stores inbound media from Zalo channels before validating sender authorization. Unauthorized senders can force network fetches and disk writes to the media store by sending messages that are subsequen…

euvd · EUVD-2026-17431 · Published

7 Nov 2026 07:36:13 UTC

OpenClaw before 2026.3.28 downloads and stores inbound media from Zalo channels before validating sender authorization. Unauthorized senders can force network fetches and disk writes to the media store by sending messages that are subsequen…

euvd · EUVD-2026-17431 · Published

5 Nov 2026 07:04:45 UTC

OpenClaw before 2026.3.28 downloads and stores inbound media from Zalo channels before validating sender authorization. Unauthorized senders can force network fetches and disk writes to the media store by sending messages that are subsequen…

euvd · EUVD-2026-17431 · Published

3 Nov 2026 06:08:24 UTC

OpenClaw before 2026.3.28 downloads and stores inbound media from Zalo channels before validating sender authorization. Unauthorized senders can force network fetches and disk writes to the media store by sending messages that are subsequen…

euvd · EUVD-2026-17431 · Published

1 Nov 2026 05:14:39 UTC

OpenClaw before 2026.3.28 downloads and stores inbound media from Zalo channels before validating sender authorization. Unauthorized senders can force network fetches and disk writes to the media store by sending messages that are subsequen…

euvd · EUVD-2026-17431 · Published

30 Oct 2026 04:58:52 UTC

OpenClaw before 2026.3.28 downloads and stores inbound media from Zalo channels before validating sender authorization. Unauthorized senders can force network fetches and disk writes to the media store by sending messages that are subsequen…

euvd · EUVD-2026-17431 · Published

28 Oct 2026 04:00:36 UTC

OpenClaw before 2026.3.28 downloads and stores inbound media from Zalo channels before validating sender authorization. Unauthorized senders can force network fetches and disk writes to the media store by sending messages that are subsequen…

euvd · EUVD-2026-17431 · Published

25 Oct 2026 08:17:24 UTC

OpenClaw before 2026.3.28 downloads and stores inbound media from Zalo channels before validating sender authorization. Unauthorized senders can force network fetches and disk writes to the media store by sending messages that are subsequen…

nvd · CVE-2026-33576 · Published

24 Oct 2026 13:17:17 UTC

OpenClaw: Zalo channel downloads media before sender authorization

osv · GHSA-v2v2-f783-358j · Published

23 Oct 2026 15:48:27 UTC

OpenClaw < 2026.3.28 - Unauthorized Media Download via Zalo Channel

cve-program · CVE-2026-33576 · Published

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 12 Nov 14:22 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current