MPXJ is an open source library to read and write project plans from a variety of file formats and databases. From 5.5.5 until 16.4.1, MerlinReader creates a DocumentBuilder with default settings while parsing XML from the ZTIMEINTERVALS column of a Merlin project SQLite database, leaving doctype declarations and external entities enabled. A crafted database can cause the parser to read an arbitrary local file, although MPXJ's subsequent handling of the parsed XML makes disclosure of the file contents unlikely. This issue is fixed in version 16.4.1.
CVE-2026-61570
HIGHPre-NVD 7.57.5—Trending — 3 sources updated this week
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 60% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 38(Track)EG Risk 38/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 40%
- KEV
- Not listed
Published
September 22, 2026
Last Modified
September 23, 2026
Advisory Details (3)
Auto-updated Sep 22, 2026Patch available. Sources: github, github_commit, github_release.
github_release Patch Available
Version 16.4.1
Patch available: joniles/mpxj v16.4.1
https://github.com/joniles/mpxj/releases/tag/v16.4.1github_commit Patch Available
commit 6e8288bc4d1c (joniles/mpxj)
Patch available: joniles/mpxj v16.4.1 (contains commit 6e8288bc4d1c)
https://github.com/joniles/mpxj/commit/6e8288bc4d1cd62842af298004dc74fe66fb0805github Patch Available
XXE Vulnerability in MerlinReader · Advisory · joniles/mpxj · GitHub
https://github.com/joniles/mpxj/security/advisories/GHSA-5vvx-3h34-f3gjVendor Advisories for CVE-2026-61570(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 5× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-23 18:25 UTCEG score recompute
- 2026-09-23 17:54 UTCEPSS rescore
- 2026-09-22 20:32 UTCEG score recompute
- 2026-09-22 19:58 UTCEG score recompute
- 2026-09-22 19:57 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-611
Frequently asked(5)
What is CVE-2026-61570?
CVE-2026-61570 is a high vulnerability published on September 22, 2026. MPXJ is an open source library to read and write project plans from a variety of file formats and databases. From 5.5.5 until 16.4.1, MerlinReader creates a DocumentBuilder with default settings while parsing XML from the ZTIMEINTERVALS column of a Merlin project SQLite database, leaving doctype…
When was CVE-2026-61570 disclosed?
CVE-2026-61570 was first published in the National Vulnerability Database on September 22, 2026, with the most recent update on September 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-61570 actively exploited?
CVE-2026-61570 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 59.8% of all scored CVEs.
What is the CVSS score of CVE-2026-61570?
CVE-2026-61570 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-61570?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-61570, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-61570
Is Your Infrastructure Affected by CVE-2026-61570?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.