ZDF
Sign inSign up

Vulnerabilities

Vulnerability · RUSTSEC-2026-0338

Remote peer can panic quinn-proto with zero-length STREAM frames during unordered reads

Published Sep 14, 2026 · RustSec Rust

Open the advisory

Exploitation likelihood is not on this record for RUSTSEC-2026-0338. A missing EPSS score is not a low risk. Compare RustSec Rust with the linked advisory before you change production.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
Remediation
Not established
Affected products
RustSec Rust

When a stream is read in unordered mode (for example through in quinn-proto or in ), quinn-proto proactively deduplicates received data by recording received ranges in a through its method. When an incoming STREAM frame carried an empty payload, the implementation of the iterator returned by inserted an empty range into the set, violating the invariant that stored ranges are non-empty. Subsequent frames overlapping that region then caused a panic while processing the stream. A remote peer can trigger this with five small STREAM frames (two of them zero-length) once the application has put the

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix RUSTSEC-2026-0338

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for RUSTSEC-2026-0338. A missing EPSS score is not a low risk. Compare RustSec Rust with the linked advisory before you change production.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 14, 2026 · RustSec Advisory DB

    Detected

    When a stream is read in unordered mode (for example through in quinn-proto or in ), quinn-proto proactively deduplicates received data by recording received ranges in a through its method. When an incoming STREAM frame carried an empty payload, the implementation of the iterator returned by inserted an empty range into the set, violating the invariant that stored ranges are non-empty. Subsequent

Sources

  • RustSec Advisory DBVendor advisoryRUSTSEC-2026-0338

    When a stream is read in unordered mode (for example through in quinn-proto or in ), quinn-proto proactively deduplicates received data by recording received ranges in a through its method. When an incoming STREAM frame carried an empty payload, the implementation of the iterator

    crates.io

Freshness

Last verified in this catalog Unknown date. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.