Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.3.1 to 2.11.0, the decryption dispatch performs insufficient structural and parameter validation before standard and agile decryptors slice, index, allocate, and divide using attacker-controlled values. Decrypt passes attacker-controlled EncryptionInfo and EncryptedPackage data into standardDecrypt or agileDecrypt before validating the structures used by those routines. When a malformed OLE compound file with a version-valid EncryptionInfo stream is opened or passed to Decrypt, nine malformed-input classes reach unrecovered Go runtime panics instead of the documented error path, allowing an attacker to terminate the calling process. No fixed version is available as of this review.
CVE-2026-107214
This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (17th percentile of EPSS-scored CVEs). 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).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5HIGHmedium confidence
- EG Risk
- 65EG Risk 65/100CISA SSVC
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%Exploitation40% × 40%Automatability100% × 15%CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.3%
- EPSS %ILE
- 17th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
October 7, 2026
Last Modified
October 8, 2026
Advisory Details (3)
Auto-updated Oct 7, 2026commit 22f76f9acb94 (qax-os/excelize)
Fix landed in qax-os/excelize commit 22f76f9acb94 — awaiting tagged release
https://github.com/qax-os/excelize/commit/22f76f9acb94b85b3eb9c4365ab4f750cebbc565Prevent decryption panics with explicit input validation
Fix merged in qax-os/excelize PR #2395 on 2026-09-15 — awaiting tagged release
https://github.com/qax-os/excelize/pull/2395Decrypt: unrecoverable panics on malformed OLE/CFB encrypted workbooks (9 distinct sites) · Advisory · qax-os/excelize · GitHub
https://github.com/qax-os/excelize/security/advisories/GHSA-2j4c-ffch-9f23Vendor Advisories for CVE-2026-107214(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| github.com/xuri/excelize/v2 | — |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 10× 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.
- 2026-10-09 21:09 UTCEG score recompute
- 2026-10-09 20:06 UTCEPSS rescore
- 2026-10-08 20:38 UTCEG score recompute
- 2026-10-08 17:11 UTCEPSS rescore
- 2026-10-08 08:38 UTCEG score recompute
- 2026-10-07 20:22 UTCEG score recompute
- 2026-10-07 19:57 UTCEG score recompute
- 2026-10-07 18:38 UTCEG score recompute
- 2026-10-07 17:57 UTCEG score recompute
- 2026-10-07 17:56 UTCMITRE cvelistV5first tracked
Related CVEs(same product + same CWE)
Same product
10 shownGo:github.com/xuri/excelize/v2
Frequently asked(5)
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Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-107214
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