Vulnerability · CVE-2026-78208
exceljs through 4.4.0 contains a path traversal vulnerability in the Workbook.addImage() function that fails to validate file paths.
Published Aug 24, 2026 · catalog updated Oct 14, 2026 · exceljs through 4.4.0 contains
Check if you run it
No confirmed exploitation is on record for CVE-2026-78208. EPSS is 0.51%. Act only if a listed version of exceljs through 4.4.0 contains is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (exceljs through 4.4.0 contains).
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High8.7
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.51%
- Remediation
- Advisory link
- Affected products
- See sources for product scope
exceljs through 4.4.0 contains a path traversal vulnerability in the Workbook.addImage() function that fails to validate file paths. Attackers can supply arbitrary file paths to read any file accessible to the Node.js process and embed it in the generated workbook.
No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.
How to fix CVE-2026-78208
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-78208. EPSS is 0.51%. Act only if a listed version of exceljs through 4.4.0 contains is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-73. EPSS 0.51%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Aug 24, 2026 · NIST NVD
Detected
exceljs through 4.4.0 contains a path traversal vulnerability in the Workbook.addImage() function that fails to validate file paths. Attackers can supply arbitrary file paths to read any file accessible to the Node.js process and embed it in the generated workbook.
Oct 14, 2026 · NIST NVD
Updated
exceljs through 4.4.0 contains a path traversal vulnerability in the Workbook.addImage() function that fails to validate file paths. Attackers can supply arbitrary file paths to read any file accessible to the Node.js process and embed it in the generated workbook.
Sources
- CVE.orgVulnerability recordCVE-2026-78208
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-78208
30-day exploitation probability 0.5%
first.org - NIST NVDVulnerability recordCVE-2026-78208
exceljs through 4.4.0 contains a path traversal vulnerability in the Workbook.addImage() function that fails to validate file paths. Attackers can supply arbitrary file paths to read any file accessible to the Node.js process and embed it in the generated workbook.
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.