What is CVE-2022-2582?

CVE-2022-2582 is a medium-severity vulnerability in Amazon AWS Software Development Kit, classified under Inadequate Encryption Strength. CVSS score: 4.3/10. Published 2022-12-27.

How severe is CVE-2022-2582?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Amazon AWS Software Development Kit

CVE-2022-2582

The AWS S3 Crypto SDK sends an unencrypted hash of the plaintext alongside the ciphertext as a metadata field. This hash can be used to brute force the plaintext, if the hash is readable to the attacker. AWS now blocks this metadata field, but older SDK versions still send it.

Published 2022-12-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (39.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-326 — Inadequate Encryption Strength

References

github.com/aws/aws-sdk-go/commit/35fa6ddf45c061e0f08d3a3b5119f8f4da38f6d1 (Patch, Third Party Advisory)
pkg.go.dev/vuln/GO-2022-0391 (Exploit, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-2582?: CVE-2022-2582 is a medium-severity vulnerability in Amazon AWS Software Development Kit, classified under Inadequate Encryption Strength. CVSS score: 4.3/10. Published 2022-12-27.
How severe is CVE-2022-2582?: Medium severity. CVSS v3 base score is 4.3 out of 10.