CVE-2022-23640
Improper Restriction of XML External Entity Reference in Excel-Streaming-Reader
Excel-Streaming-Reader is an easy-to-use implementation of a streaming Excel reader using Apache POI. Prior to xlsx-streamer 2.1.0, the XML parser that was used did apply all the necessary settings to prevent XML Entity Expansion issues. Upgrade to version 2.1.0 to receive a patch. There is no known workaround.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Improper Restriction of XML External Entity Reference in Excel-Streaming-Reader
Excel-Streaming-Reader is an easy-to-use implementation of a streaming Excel reader using Apache POI. Prior to xlsx-streamer 2.1.0, the XML parser that was used did apply all the necessary settings to prevent XML Entity Expansion issues. Upgrade to version 2.1.0 to receive a patch. There is no known workaround.
- Record
CVE-2022-23640- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-611
- Updated
- 2026-11-02
EUVDEUVD-2022-1590
Excel-Streaming-Reader is an easy-to-use implementation of a streaming Excel reader using Apache POI. Prior to xlsx-streamer 2.1.0, the XML parser that was used did apply all the necessary settings to prevent XML Entity Expansion issues. Upgrade to version 2.1.0 to receive a patch. There is no known workaround.
- Record
EUVD-2022-1590- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-xvm2-9xvc-hx7f
Improper Restriction of XML External Entity Reference in com.monitorjbl:xlsx-streamer
Impact
Prior to xlsx-streamer 2.1.0, the XML parser that was used did not apply all the necessary settings to prevent XML Entity Expansion issues.
Patches
Upgrade to version 2.1.0.
Workarounds
No known workaround.
References
https://github.com/monitorjbl/excel-streaming-reader/commit/0749c7b9709db078ccdeada16d46a34bc2910c73
For more information
If you have any questions or comments about this advisory:
- Open an issue in monitorjbl/excel-streaming-reader
- Record
GHSA-xvm2-9xvc-hx7f- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-611, CWE-776
- Updated
- 2026-11-02
NVD
Excel-Streaming-Reader is an easy-to-use implementation of a streaming Excel reader using Apache POI. Prior to xlsx-streamer 2.1.0, the XML parser that was used did apply all the necessary settings to prevent XML Entity Expansion issues. Upgrade to version 2.1.0 to receive a patch. There is no known workaround.
- Record
CVE-2022-23640- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-611, CWE-776
- Updated
- 2026-11-02
OSV
Improper Restriction of XML External Entity Reference in Excel-Streaming-Reader
Excel-Streaming-Reader is an easy-to-use implementation of a streaming Excel reader using Apache POI. Prior to xlsx-streamer 2.1.0, the XML parser that was used did apply all the necessary settings to prevent XML Entity Expansion issues. Upgrade to version 2.1.0 to receive a patch. There is no known workaround.
- Record
CVE-2022-23640- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-611
- Updated
- 2026-11-02
OSVGHSA-xvm2-9xvc-hx7f
Improper Restriction of XML External Entity Reference in com.monitorjbl:xlsx-streamer
Impact
Prior to xlsx-streamer 2.1.0, the XML parser that was used did not apply all the necessary settings to prevent XML Entity Expansion issues.
Patches
Upgrade to version 2.1.0.
Workarounds
No known workaround.
References
https://github.com/monitorjbl/excel-streaming-reader/commit/0749c7b9709db078ccdeada16d46a34bc2910c73
For more information
If you have any questions or comments about this advisory:
- Open an issue in monitorjbl/excel-streaming-reader
- Record
GHSA-xvm2-9xvc-hx7f- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-611, CWE-776
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
com.monitorjbl:xlsx-streamerMaven |
before 2.1.0 | 2.1.0 |
com.monitorjbl:xlsx-streamerMaven |
before 2.1.0, plus listed versions 0.2.100.2.110.2.120.2.130.2.3 Show 13 moreShow less0.2.40.2.50.2.60.2.70.2.80.2.91.0.01.0.11.0.21.1.01.2.01.2.12.0.0 |
2.1.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-23640 is a critical vulnerability (CVSS 9.8) in Monitorjbl Excel-streaming-reader, published March 2, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.27%, the 70th percentile. Fixed in com.monitorjbl:xlsx-streamer 2.1.0.
References
github.com/monitorjbl/excel-streaming-reader/security/advisories/GHSA-xvm2-9xvc-hx7f
nvd.nist.gov/vuln/detail/CVE-2022-23640