Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-v2v2-f783-358j
Advisory ID github_osv/GHSA-v2v2-f783-358j
Aliases CVE-2026-33576
Summary OpenClaw: Zalo channel downloads media before sender authorization ## 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.
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (2)
CWE-862 Missing Authorization
CWE-863 Incorrect Authorization
System Score Found at
cvssv3.1 9.8 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-v2v2-f783-358j/GHSA-v2v2-f783-358j.json
cvssv4 6.9 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-v2v2-f783-358j/GHSA-v2v2-f783-358j.json
generic_textual MODERATE
Reference id Reference type URL
https://github.com/openclaw/openclaw
68ceaf7a5f64a23e78b95eff055e4b497218312a Other https://github.com/openclaw/openclaw/commit/68ceaf7a5f64a23e78b95eff055e4b497218312a
CVE-2026-33576 https://nvd.nist.gov/vuln/detail/CVE-2026-33576
GHSA-v2v2-f783-358j Advisory https://github.com/openclaw/openclaw/security/advisories/GHSA-v2v2-f783-358j
openclaw-unauthorized-media-download-via-zalo-channel Advisory https://www.vulncheck.com/advisories/openclaw-unauthorized-media-download-via-zalo-channel
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-v2v2-f783-358j/GHSA-v2v2-f783-358j.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-v2v2-f783-358j/GHSA-v2v2-f783-358j.json
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-02T15:11:13Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/33xxx/CVE-2026-33576.json

Source Advisory: vulnrichment/CVE-2026-33576

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'yes'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]