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CVE-2022-26134

In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are from 1.3.0 before 7.4.17, from 7.13.0…

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In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are from 1.3.0 before 7.4.17, from 7.13.0 before 7.13.7, from 7.14.0 before 7.14.3, from 7.15.0 before 7.15.2, from 7.16.0 before 7.16.4, from 7.17.0 before 7.17.4, and from 7.18.0 before 7.18.1.
CVSS 9.8 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
9.0/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 9.8: +1.47
  • Fresh EPSS: 100.00%: +0.50

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

Sources: 14 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

SOC Prime
Press · 07 Nov 2025, 08:00 · Chinese APT Exploits CVE-2022-26134 & CVE-2021-44228 - SOC Prime
CloudSEK
Press · 06 Jun 2023, 14:00 · Hacktivist Group DragonForce Actively Targeting Indian Entities, Shares an Exploit for a Critical Confluence Server Vulnerability CVE-2022-26134 - CloudSEK
www.trendmicro.com
Press · 21 Sep 2022, 07:00 · Atlassian Confluence Vulnerability CVE-2022-26134 Abused For Cryptocurrency Mining, Other Malware - www.trendmicro.com
Akamai
Press · 28 Jun 2022, 07:00 · Akamai’s Observations of Confluence Zero Day (CVE-2022-26134) - Akamai
Palo Alto Networks
Press · 22 Jun 2022, 07:00 · CVE-2022-26134 Seen in the Wild by Cortex XDR - Palo Alto Networks
See all 14 source documents
Bitsight
Press · 15 Jun 2022, 07:00 · Atlassian Confluence vulnerability (CVE-2022-26134) and what it means for your business - Bitsight
BleepingComputer
Press · 11 Jun 2022, 07:00 · Confluence servers hacked to deploy AvosLocker, Cerber2021 ransomware - BleepingComputer
GreyNoise
Press · 06 Jun 2022, 07:00 · Observed in the Wild: Atlassian Confluence Server CVE-2022-26134 - GreyNoise
Cloudflare Blog
Press · 05 Jun 2022, 07:00 · Cloudflare observations of Confluence zero day (CVE-2022-26134) - Cloudflare Blog
Unit 42
Press · 03 Jun 2022, 07:00 · Threat Brief: Atlassian Confluence Remote Code Execution Vulnerability (CVE-2022-26134) (Updated) - Unit 42
Cloudflare Blog
Press · 03 Jun 2022, 07:00 · Cloudflare customers are protected from the Atlassian Confluence CVE-2022-26134 - Cloudflare Blog
BleepingComputer
Press · 03 Jun 2022, 07:00 · Atlassian fixes Confluence zero-day widely exploited in attacks - BleepingComputer
BleepingComputer
Press · 02 Jun 2022, 07:00 · Critical Atlassian Confluence zero-day actively used in attacks - BleepingComputer
Rapid7
Press · 02 Jun 2022, 07:00 · Active Exploitation of Confluence CVE-2022-26134 - Rapid7

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 9.0 (2026-11-02 15:13). The curve appears once the score changes.

Public exploit evidence

15

Public exploit entries / repo candidates

See 15 repos with metrics
RepositoryStarsForksLanguageUpdated
jbaines-r7/through_the_wire17448Python06 Jun 2022, 16:38
CLincat/vulcat13317Python14 Apr 2026, 14:44
iveresk/cve-2022-26134124Python21 Jul 2022, 14:24
keven1z/CVE-2022-2613470Python25 Jul 2022, 05:51
alcaparra/CVE-2022-2613442Python07 Jun 2022, 10:53
kh4sh3i/CVE-2022-2613440Python21 Jun 2022, 12:05
twoning/CVE-2022-26134-PoC21Python14 Jul 2022, 01:31
404fu/CVE-2022-26134-POC10Python26 Mar 2024, 14:34
acfirthh/CVE-2022-2613410Python20 Sep 2023, 20:08
axingde/CVE-2022-2613410Python05 Jun 2022, 13:50
shamo0/CVE-2022-2613412Python04 Jun 2022, 12:53
2212970396/CVE_2022_2613400Python14 Jul 2022, 01:33
Luchoane/CVE-2022-26134_conFLU00Python01 Jul 2022, 18:41
thetowsif/CVE-2022-2613400Python09 Jun 2025, 03:44
wjlin0/CVE-2022-2613400Go26 Dec 2022, 05:27
Public exploit evidence
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 9.8; EPSS 100.0%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior 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 13:58:37.150188+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Added to the CISA KEV catalog
02 Jun 2022, 00:00
First press mention
02 Jun 2022, 07:00
Published
03 Jun 2022, 21:51
Latest press mention
07 Nov 2025, 08:00
Score calculated
05 Nov 2026, 13:58
PoCs on GitHub
15 repositories