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CVE-2026-34319: oracle corporation mysql shell Observable Response Discrepancy

CVSS: 5.0v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-34319
Published 21-04-2026Last modified 22-04-2026
Open JSON

Vulnerability summary

CVE-2026-34319 is a medium (CVSS 5.0) Observable Response Discrepancy vulnerability in oracle corporation mysql shell. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.2% of scored vulnerabilities.

Overall risk
20/100
0100
Low · default modelHow is this calculated?
CVSS score
5.0/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.14%
0%100%
Low · -0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
USN-8363-1USN-8363-2

Timeline

  1. 21-04-2026
    PublishedVulnerability first disclosed.
  2. 22-04-2026
    Last modifiedVulnerability information updated.

Description

Vulnerability in the MySQL Shell product of Oracle MySQL (component: Shell: Core Client). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where MySQL Shell executes to compromise MySQL Shell. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Shell. CVSS 3.1 Base Score 5.0 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H).

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

-0.01 pp

From 0.15% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.14%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu7 products
  • mariadb-10.3All versions (No fix recorded)
  • mysql-5.5All versions (No fix recorded)
  • mysql-5.7All versions (No fix recorded)
  • mysql-8.0< 8.0.46-0ubuntu0.20.04.1+esm2 | < 8.0.46-0ubuntu0.22.04.2 | < 8.0.46-0ubuntu0.24.04.2
  • mysql-8.4< 8.4.9-0ubuntu0.25.10.1 | < 8.4.9-0ubuntu0.26.04.1
Oracle1 product
  • mysql≥ 8.0.0, ≤ 8.0.45 | ≥ 8.4.0, ≤ 8.4.8 | ≥ 9.0.0, ≤ 9.6.0
Oracle corporation1 product
  • mysql shell≥ 8.0.0, ≤ 8.0.45 | ≥ 8.4.0, ≤ 8.4.8 | ≥ 9.0.0, ≤ 9.6.0

3 vendors · 9 products

References

5 links