VulnRadar

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Page generated: 08 Nov 2026, 14:23 UTC

CVE-2022-33891

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The Apache Spark UI offers the possibility to enable ACLs via the configuration option spark.acls.enable. With an authentication filter, this checks whether a user has access permissions to view or modify the application. If ACLs are enabled, a code path in HttpSecurityFilter can allow someone to perform impersonation by providing an arbitrary user name. A malicious user might then be able to reach a permission check function that will ultimately build a Unix shell command based on their input, and execute it. This will result in arbitrary shell command execution as the user Spark is currently running as. This affects Apache Spark versions 3.0.3 and earlier, versions 3.1.1 to 3.1.2, and versions 3.2.0 to 3.2.1.

CVSS 8.8 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE

0.0/10

REALITY · THREAT PRIORITY

8.8/10

General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?

Recorded exploitation baseline: +7.00
Technical severity: CVSS 8.8: +1.32
Fresh EPSS: 93.24%: +0.47

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 7 documents and public datasets.

Hype components

Headline sample (25%)

0/100

Press, 30 days (60%)

0/100

Grounded branding (15%)

0/100

HYPE TOTAL0/100

Sources and documents

Snyk

Press · 20 Feb 2025, 08:00 · Snyk’s Fetch the Flag CTF is More Than Just a CTF - Snyk

Databricks

Press · 24 Oct 2024, 07:00 · Open Source Security at Databricks - Databricks

BleepingComputer

Press · 13 Jul 2024, 07:00 · Hackers use PoC exploits in attacks 22 minutes after release - BleepingComputer

Bitdefender

Press · 10 Jul 2023, 07:00 · Zerobot Botnet Develops New Attack Vectors and Spreading Abilities, Microsoft Warns - Bitdefender

Microsoft

Press · 21 Dec 2022, 08:00 · Microsoft research uncovers new Zerobot capabilities - Microsoft

See all 7 source documents

BleepingComputer

Press · 21 Dec 2022, 08:00 · Zerobot malware now spreads by exploiting Apache vulnerabilities - BleepingComputer

SOC Prime

Press · 20 Jul 2022, 07:00 · CVE-2022-33891 Detection: New Apache Spark Shell Command Injection Vulnerability - SOC Prime

Score evolution

● Hype ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.8 (2026-11-02 15:13). The curve appears once the score changes.

Public exploit evidence

Public exploit entries / repo candidates

See 3 repos with metrics

Repository	Stars	Forks	Language	Updated
W01fh4cker/cve-2022-33891	51	19	Python	20 Jul 2022, 08:00
AmoloHT/CVE-2022-33891	24	3	Python	01 Aug 2022, 21:30
nanaao/CVE-2022-33891	0	6	—	19 Jul 2022, 23:20

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence: Exploitation recorded
Priority basis: Recorded exploitation; CVSS 8.8; EPSS 93.2%
Attention, last 30 days: 0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential: network access, low privileges, no user interaction.
Observed activity: Exploitation recorded in CISA KEV.
Known scale: Not quantified.
Evidence confidence basis: Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:58:40.266390+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline

Published

18 Jul 2022, 00:00

First press mention

20 Jul 2022, 07:00

Added to the CISA KEV catalog

07 Mar 2023, 00:00

Latest press mention

20 Feb 2025, 08:00

Score calculated

05 Nov 2026, 13:58

PoCs on GitHub

3 repositories