CVE-2021-43113 json
Command injection in itext7-core
published 2021-12-15 4 y ago modified 2026-06-17 4 mo ago also GHSA-gv87-q66h-4277 , EUVD-2021-2524
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 5.4%
- EPSS 5.4% chance of exploitation in 30 days, percentile 92%
- public exploits
- 0
- none known
Summary
iTextPDF in iText 7 and up to (excluding 4.4.13.3) 7.1.17 allows command injection via a CompareTool filename that is mishandled on the gs (aka Ghostscript) command line in GhostscriptHelper.java.
Patch / fix
- maven com.itextpdf:itext7-core 7.1.17
- maven com.itextpdf:itextpdf 5.5.13.3
- itextpdf itext 7.1.17
- libitext5-java Debian 14, Debian 13, Debian 12 5.5.13.3-1
debian advisories DEBIAN-CVE-2021-43113
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 9 mo ago
Exploit prediction
5.42% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- pastebin.com https://pastebin.com/BXnkY9YY referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | com.itextpdf:itext7-core | <7.1.17 |
7.1.17 |
| maven | com.itextpdf:itextpdf | <5.5.13.3 |
5.5.13.3 |
Classification
- Weakness
-
- CWE-77 Improper Neutralization of Special Elements used in a Command
References
-
pastebin.com
/BXnkY9YY
web, exploit, third-party-advisory
-
debian.org
/security/2023/dsa-5323
vendor-advisory, web, third-party-advisory
-
github.com
/itext/itext7/releases/tag/7.1.17
web, release-notes, third-party-advisory
-
lists.debian.org
/debian-lts-announce/2023/01/msg00013.html
mailing-list, web, third-party-advisory
-
github.com
/itext/itextpdf/releases/tag/5.5.13.3
web
-
nvd.nist.gov
/vuln/detail/CVE-2021-43113
advisory
-
github.com
/itext/itext7
package
Sources
- CVE List CVE-2021-43113
- GitHub Advisory GHSA-gv87-q66h-4277
- NVD CVE-2021-43113
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.