{"uid":"cap_aGyYPNn5D4NV_wA4b_FbR","slug":"tenjin-security-brief-etcd-handshake-deadline-advisory-c55497fd","name":"Tenjin Security Brief: etcd Handshake Deadline Advisory","description":"GitHub published a high-severity etcd advisory for TLS listeners that could hold unbounded handshake goroutines; operators should move to 3.7.1, 3.6.14, or 3.5.33 and restrict who can reach the client gRPC port.","url":"https://tenjin.blog/api/read/security-briefs/security-briefs-daily-etcd-added-a-handshake-deadline","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"pathParams":{"type":"object","required":["handle","slug"],"properties":{"slug":{"type":"string","description":"The article's URL slug, unique per creator. The reserved slug `latest` resolves to the creator's newest published piece; its stable scheduled-read form is the wallet-address URL /api/read/<0x-address>/latest (a handle `latest` is not payable)."},"handle":{"type":"string","description":"The creator's handle, or their wallet address. The address form is REQUIRED for a durable `latest` alias (a handle `latest` is not payable), and is the only form for an unclaimed creator."}}},"queryParams":{"type":"object","required":[],"properties":{},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_jfp-ZVSAh6YzHXUtvAOzM","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Retrieves the full paid-access text of a security brief about the etcd TLS handshake goroutine vulnerability and recommended mitigations","exampleAgentPrompt":"Pull up the full Tenjin security brief about the etcd handshake deadline advisory — the one covering the high-severity TLS goroutine issue and recommended versions to upgrade to.","exampleUseCases":[{"title":"DevOps team etcd patching guidance","prompt":"I need the full details from the Tenjin security brief on the etcd TLS handshake goroutine vulnerability — what versions should we upgrade to and how do we restrict the gRPC port?"},{"title":"Security researcher advisory review","prompt":"Can you get me the complete text of the etcd handshake deadline security brief from Tenjin? I want to understand the scope of the GitHub high-severity advisory and what mitigations are recommended."},{"title":"Automated security digest ingestion","prompt":"Fetch the paid Tenjin brief on the etcd handshake deadline issue — the one about unbounded goroutines on TLS listeners — so I can include it in today's security digest."}],"resultDescription":"Returns the full article text of the security brief as a JSON object, detailing the etcd TLS handshake goroutine vulnerability, affected versions, recommended upgrade targets (3.7.1, 3.6.14, 3.5.33), and guidance on restricting access to the client gRPC port. Access is gated behind an x402 micropayment of $0.10 USDC.","failureModes":["Payment not completed or x402 challenge not satisfied — returns 402 Payment Required","Invalid or mismatched handle/slug path parameters — returns 404 Not Found","Article not yet published or taken down — returns 404","Network or server error — returns 5xx","Using handle 'latest' without a wallet address form — not payable and returns an error"],"whenToPreferThis":"Use this endpoint when you need the complete, authoritative text of this specific etcd security brief from Tenjin and are prepared to pay the $0.10 USDC x402 micropayment. Prefer this over general web search when you want structured JSON output of the article, or when the brief may be paywalled elsewhere. Best suited for automated security pipelines ingesting curated advisories.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:46:58.280Z","isFirstParty":false}