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CVE-2017-9096

Improper Restriction of XML External Entity Reference in iText

8.8 HighPublic exploitFix available

CVE-2017-9096 is a high vulnerability (CVSS 8.8) in Itextpdf Itext, published November 8, 2017. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 9.56%, the 95th percentile. Fixed in com.itextpdf:itextpdf 5.5.12.

What does this mean?
Severity
8.8 HighCVSS 3.0, NVD
Exploit chance
9.56%EPSS, 95th percentile
Exploitation
None known1 public exploit
Fixed in
5.5.12com.itextpdf:itextpdf +7 more

Description

The XML parsers in iText before 5.5.12 and 7.x before 7.0.3 do not disable external entities, which might allow remote attackers to conduct XML external entity (XXE) attacks via a crafted PDF.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

9.56%Up 8.3 points since Apr 14, 2021
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
com.itextpdf:itextpdf
Maven
before 5.5.12
5.5.12
com.itextpdf:itextpdf
Maven
7.0.0 up to 7.0.3
7.0.3
com.lowagie:itext
Maven
through 4.2.2None known
com.lowagie:itext
TuxCare:Maven
2.1.7 up to 2.1.7-tuxcare.1
2.1.7-tuxcare.1
com.itextpdf:itextpdf
TuxCare:Maven
5.0.6 up to 5.0.6-tuxcare.1
5.0.6-tuxcare.1
com.lowagie:itext
TuxCare:Maven
2.0.8 up to 2.0.8-tuxcare.1
2.0.8-tuxcare.1
com.itextpdf:itextpdf
Maven
before 5.5.12, plus listed versions
5.0.65.1.05.1.15.1.25.1.3
Show 24 moreShow less
5.2.05.2.15.3.05.3.15.3.25.3.45.4.05.4.15.4.25.4.35.4.45.4.55.5.05.5.15.5.105.5.115.5.25.5.35.5.45.5.55.5.65.5.75.5.85.5.9
5.5.12
com.lowagie:itext
Maven
through 4.2.2, plus listed versions
0.991.02b1.1.41.2.31.3
Show 15 moreShow less
1.3.11.41.4.82.0.12.0.62.0.72.0.82.1.02.1.22.1.32.1.42.1.52.1.74.2.04.2.1
None known

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubjakabakos/CVE-2017-9096-iText-XXE2022-05-18

What each source reports

NVD Score used8.8

The XML parsers in iText before 5.5.12 and 7.x before 7.0.3 do not disable external entities, which might allow remote attackers to conduct XML external entity (XXE) attacks via a crafted PDF.

Record
CVE-2017-9096
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-611
Updated
2026-11-02
CVE ListNo score

The XML parsers in iText before 5.5.12 and 7.x before 7.0.3 do not disable external entities, which might allow remote attackers to conduct XML external entity (XXE) attacks via a crafted PDF.

Record
CVE-2017-9096
Updated
2026-11-02
EUVDEUVD-2022-3126No score

The XML parsers in iText before 5.5.12 and 7.x before 7.0.3 do not disable external entities, which might allow remote attackers to conduct XML external entity (XXE) attacks via a crafted PDF.

Record
EUVD-2022-3126
Updated
2026-11-03
GitHub AdvisoriesGHSA-86p9-x5pw-94qx8.8

Improper Restriction of XML External Entity Reference in iText

The XML parsers in iText before 5.5.12 and 7.x before 7.0.3 do not disable external entities, which might allow remote attackers to conduct XML external entity (XXE) attacks via a crafted PDF.

Record
GHSA-86p9-x5pw-94qx
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-611
Updated
2026-11-02
OSV8.8

The XML parsers in iText before 5.5.12 and 7.x before 7.0.3 do not disable external entities, which might allow remote attackers to conduct XML external entity (XXE) attacks via a crafted PDF.

Record
CVE-2017-9096
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVGHSA-86p9-x5pw-94qx8.8

Improper Restriction of XML External Entity Reference in iText

The XML parsers in iText before 5.5.12 and 7.x before 7.0.3 do not disable external entities, which might allow remote attackers to conduct XML external entity (XXE) attacks via a crafted PDF.

Record
GHSA-86p9-x5pw-94qx
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-611
Updated
2026-11-02
OSVCLSA-2025-1761005191No score

TuxCare security update for com.lowagie:itext (1 CVE)

TuxCare rebuilt com.lowagie:itext to address 1 CVE. Fixed in 2.1.7-tuxcare.1.

Record
CLSA-2025-1761005191
Updated
2026-11-02
OSVCLSA-2026-1787125497No score

TuxCare security update for com.itextpdf:itextpdf (1 CVE)

TuxCare rebuilt com.itextpdf:itextpdf to address 1 CVE. Fixed in 5.0.6-tuxcare.1.

Record
CLSA-2026-1787125497
Updated
2026-11-02
OSVCLSA-2026-1787667201No score

TuxCare security update for com.lowagie:itext (1 CVE)

TuxCare rebuilt com.lowagie:itext to address 1 CVE. Fixed in 2.0.8-tuxcare.1.

Record
CLSA-2026-1787667201
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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