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Public proof of conceptFix available

CVE-2012-2926

A public proof of concept exists; no exploitation attested.

  • Published2012-05-22
  • Fixed in2.4.1 · 2.3.7 · 2.2.9 · 2.1.2 · 2.0.9

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Atlassian JIRA before 5.0.1; Confluence before 3.5.16, 4.0 before 4.0.7, and 4.1 before 4.1.10; FishEye and Crucible before 2.5.8, 2.6 before 2.6.8, and 2.7 before 2.7.12; Bamboo before 3.3.4 and 3.4.x before 3.4.5; and Crowd before 2.0.9, 2.1 before 2.1.2, 2.2 before 2.2.9, 2.3 before 2.3.7, and 2.4 before 2.4.1 do not properly restrict the capabilities of third-party XML parsers, which allows remote attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors.

Timeline

dates in UTC
  1. 2012-05-2215:55CVE publishedNVD
  2. 2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2012-2926?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2012-2926?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Atlassian crowd
BranchAffectedFixed in
2.4≥ 2.4.0, < 2.4.12.4.1
2.3≥ 2.3.0, < 2.3.72.3.7
2.2≥ 2.2.0, < 2.2.92.2.9
2.1≥ 2.1, < 2.1.22.1.2
2.0< 2.0.92.0.9
Atlassian crucible
BranchAffectedFixed in
2.7≥ 2.7, < 2.7.122.7.12
2.6≥ 2.6, < 2.6.82.6.8
2.5< 2.5.82.5.8
Atlassian fisheye
BranchAffectedFixed in
2.7≥ 2.7, < 2.7.122.7.12
2.6≥ 2.6, < 2.6.82.6.8
2.5< 2.5.82.5.8

4 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Atlassian crowd to 2.4.1 · 2.3.7 · 2.2.9 · 2.1.2 · 2.0.9

Advisories and patches

Detection

read 2026-10-23 19:23 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-37218
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVSS 3.19.1read 2026-10-23
  • NVDCVSS 2.06.4read 2026-10-23
  • FIRST EPSSEPSS score66.3 %read 2026-10-23
  • Exploit-DBdetectionread 2026-10-23

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Published
2012-05-22
Last Modified
2026-06-16
NVD status
Modified

Frequently asked questions

What is CVE-2012-2926?

Atlassian JIRA before 5.0.1; Confluence before 3.5.16, 4.0 before 4.0.7, and 4.1 before 4.1.10; FishEye and Crucible before 2.5.8, 2.6 before 2.6.8, and 2.7 before 2.7.12; Bamboo before 3.3.4 and 3.4.x before 3.4.5; and Crowd before 2.0.9, 2.1 before 2.1.2, 2.2 before 2.2.9, 2.3 before 2.3.7, and 2.4 before 2.4.1 do not properly restrict the capabilities of third-party XML parsers, which allows remote attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors.

Is CVE-2012-2926 actively exploited?

Active exploitation of CVE-2012-2926 has not been confirmed. Its EPSS score was 66.3% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2012-2926?

CVE-2012-2926 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

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