Is there a public exploit for CVE-2026-62300?

No public exploit for CVE-2026-62300 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-62300?

CVE-2026-62300 scores CVSS 6.5 (v3.1), rated medium. EPSS puts the chance of exploitation in the next 30 days at 0.25%.

What does CVE-2026-62300 affect?

CVE-2026-62300 affects filecoin-project filecoin-pin.

6.5 Medium

Filecoin Pin is an IPFS Pinning Service API implementation that pins to Filecoin's PDP service.

CVE-2026-62300

Filecoin Pin is an IPFS Pinning Service API implementation that pins to Filecoin's PDP service. In daemon deployments up to and including version 1.1.0, POST /pins in src/filecoin-pinning-server.ts checks a caller-supplied CID with CID.parse and passes it to pinStore.pin, but does not enforce request rate limits or per-user quotas. In src/filecoin-pin-store.ts, each pin independently schedules processPinInBackground with setTimeout without a queue, semaphore or concurrency cap, then recursively traverses the full DAG using helia.pins.add(cid). The per-pin Helia/Bitswap node in src/create-pinning-helia.ts has no application-level byte, block or traversal-time limits. Blocks are written under carStoragePath by src/core/car/car-blockstore-base.ts and src/core/car/car-file-backend.ts, with stats.totalSize updated only after writing. An authenticated caller, or an anonymous caller when ALLOWNOAUTH=true, can submit large DAGs and exhaust disk, network, CPU, memory and libp2p resources, causing service degradation or host/process failure and leaving partial CAR files requiring recovery. The default localhost binding and token requirement reduce exposure. Because nodes have no bootstrap…

Assessment

CVSS: 6.5 (v3.1)
Severity: Medium
EPSS: 0.25% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 30 October 2026
Last updated: 2 November 2026
Affected: filecoin-project · filecoin-pin
Assigner: GitHub_M

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

At the source

EUVD (ENISA)

References

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