CVE-2026-23907
CVE-2026-23907 is a medium-severity vulnerability in Apache Pdfbox with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- EPSS exploit prediction: 1% (55th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-10481
- Weakness: CWE-22
- Affected product: Apache Pdfbox
- Published:
- Last modified:
Description
This issue affects the ExtractEmbeddedFiles example in Apache PDFBox: from 2.0.24 through 2.0.35, from 3.0.0 through 3.0.6. The ExtractEmbeddedFiles example contains a path traversal vulnerability (CWE-22) because the filename that is obtained from PDComplexFileSpecification.getFilename() is appended to the extraction path. Users who have copied this example into their production code should review it to ensure that the extraction path is acceptable. The example has been changed accordingly, now the initial path and the extraction paths are converted into canonical paths and it is verified that extraction path contains the initial path. The documentation has also been adjusted.
Frequently asked questions
- What is CVE-2026-23907?
- This issue affects the ExtractEmbeddedFiles example in Apache PDFBox: from 2.0.24 through 2.0.35, from 3.0.0 through 3.0.6. The ExtractEmbeddedFiles example contains a path traversal vulnerability (CWE-22) because the filename that is obtained from PDComplexFileSpecification.getFilename() is appended to the extraction path. Users who have copied this example into their production code should review it to ensure that the extraction path is acceptable. The example has been changed accordingly, now the initial path and the extraction paths are converted into canonical paths and it is verified that extraction path contains the initial path. The documentation has also been adjusted.
- How severe is CVE-2026-23907?
- CVE-2026-23907 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2026-23907 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-23907?
- CVE-2026-23907 affects Apache Pdfbox. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-23907?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-23907 have an EU (EUVD) identifier?
- Yes. CVE-2026-23907 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10481.
- When was CVE-2026-23907 published?
- CVE-2026-23907 was published on 2026-03-10 and last updated on 2026-06-17.
References
- https://github.com/JoakimBulow/
- https://lists.apache.org/thread/gyfq5tcrxfv7rx0z2yyx4hb3h53ndffw
- http://www.openwall.com/lists/oss-security/2026/03/10/1
Affected products (1)
- cpe:2.3:a:apache:pdfbox:*:*:*:*:*:*:*:*
More vulnerabilities in Apache Pdfbox
- CVE-2019-0228 — Critical (CVSS 9.8): Apache PDFBox 2.0.14 does not properly initialize the XML parser, which allows context-dependent attackers to conduct…
- CVE-2016-2175 — High (CVSS 7.8): Apache PDFBox before 1.8.12 and 2.x before 2.0.1 does not properly initialize the XML parsers, which allows…
- CVE-2018-8036 — Medium (CVSS 6.5): In Apache PDFBox 1.8.0 to 1.8.14 and 2.0.0RC1 to 2.0.10, a carefully crafted (or fuzzed) file can trigger an infinite…
- CVE-2021-31812 — Medium (CVSS 5.5): In Apache PDFBox, a carefully crafted PDF file can trigger an infinite loop while loading the file. This issue affects…
- CVE-2021-31811 — Medium (CVSS 5.5): In Apache PDFBox, a carefully crafted PDF file can trigger an OutOfMemory-Exception while loading the file. This issue…
- CVE-2021-27906 — Medium (CVSS 5.5): A carefully crafted PDF file can trigger an OutOfMemory-Exception while loading the file. This issue affects Apache…
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