OpenClaw before 2026.3.25 contains a missing rate limiting vulnerability in Telegram webhook authentication that allows attackers to brute-force weak webhook secrets. The vulnerability enables repeated authentication guesses without throttling, permitting attackers to systematically guess webhook secrets through brute-force attacks.
{
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35628.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"fixed": "2026.3.25"
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"source": "AFFECTED_FIELD"
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{
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"source": "CPE_FIELD"
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{
"extracted_events": [
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],
"source": "DESCRIPTION"
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],
"cwe_ids": [
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}