CVE-2026-107214Excelize Decrypt: unrecoverable panics on malformed OLE/CFB encrypted workbooks
Updated under an hour ago ()
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It affects qax-os excelize and 1 other product. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.24%, higher than 14% of scored CVEs.
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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.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-248
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.24% (percentile 14)
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Oct 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
qax-os excelize qax_os:excelize (from the name) | from 2.3.1, <= 2.11.0 | CNA record |
excelize excelize excelize:excelize | from 2.3.1 through 2.11.0 | NVD |
References
- https://github.com/qax-os/excelize/security/advisories/GHSA-2j4c-ffch-9f23x-refsource-confirm, exploit, vendor-advisory
- https://github.com/qax-os/excelize/pull/2395x-refsource-misc, issue-tracking, patch
- https://github.com/qax-os/excelize/commit/22f76f9acb94b85b3eb9c4365ab4f750cebbc565x-refsource-misc, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.