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Vulnerabilities

Vulnerability · CVE-2026-25800

Remote memory exhaustion in quinn-proto from unbounded out-of-order stream reassembly

Published Jun 22, 2026 · catalog updated Oct 12, 2026 · Remote memory exhaustion in

Check if you run it

No confirmed exploitation is on record for CVE-2026-25800. EPSS is 0.84%. Act only if a listed version of Remote memory exhaustion in is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Remote memory exhaustion in).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.84%
Remediation
Advisory link
Affected products
crates.io quinn-proto

The component that assembles unordered stream fragments into consecutive chunks of the stream incurs some overhead for non-contiguous fragments. Readers that read from a RecvStream in order (through an impl for example) will be sensitive to peers that send fragments while leaving out early parts of the stream, and in particular, fragments with many gaps (because these cannot be defragmented). In such a scenario, the receiving connection suffers from high buffer overhead, enabling memory exhaustion.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • crates.io quinn-proto0.0.0-0 → 0.11.15

How to fix CVE-2026-25800

What to do

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

Should you patch?

No confirmed exploitation is on record for CVE-2026-25800. EPSS is 0.84%. Act only if a listed version of Remote memory exhaustion in is installed.

Which versions are affected?

Compare what you have installed with 0.0.0-0 → 0.11.15. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.84%. 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.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 22, 2026 · Catalog

    Detected

    The component that assembles unordered stream fragments into consecutive chunks of the stream incurs some overhead for non-contiguous fragments. Readers that read from a RecvStream in order (through an impl for example) will be sensitive to peers that send fragments while leaving out early parts of the stream, and in particular, fragments with many gaps (because these cannot be defragmented). In s

  2. Oct 12, 2026 · Catalog

    Fix available

    crates.io quinn-proto 0.0.0-0 → 0.11.15

  3. Oct 12, 2026 · Catalog

    Updated

    The component that assembles unordered stream fragments into consecutive chunks of the stream incurs some overhead for non-contiguous fragments. Readers that read from a RecvStream in order (through an impl for example) will be sensitive to peers that send fragments while leaving out early parts of the stream, and in particular, fragments with many gaps (because these cannot be defragmented). In s

Sources

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.