CVE-2019-17556 json
Deserialization of Untrusted Data in Apache Olingo
published 2019-12-04 6 y ago modified 2026-06-17 4 mo ago also GHSA-gj76-429m-56wc , EUVD-2020-0304
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.6%
- EPSS 3.6% chance of exploitation in 30 days, percentile 89%
- public exploits
- 0
- none known
Summary
Apache Olingo versions 4.0.0 to 4.6.0 provide the AbstractService class, which is public API, uses ObjectInputStream and doesn't check classes being deserialized. If an attacker can feed malicious metadata to the class, then it may result in running attacker's code in the worse case.
Patch / fix
Exploit prediction
3.62% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 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 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
| 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 | org.apache.olingo:odata-client-proxy | >=4.0.0, <4.7.0 |
4.7.0 |
Affected products
- Apache Olingo
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
github.com
/apache/olingo-odata4/pull/60/files
web
-
mail-archives.apache.org
/mod_mbox/olingo-user/201912.mbox/%3CCAGSZ4d4vbSYaVh3aUWAvcVHK2qcFxxCZd3WAx3xbwZXskPX8nw%40mail.gmail.com%3E
mailing-list, web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2019-17556
advisory
-
issues.apache.org
/jira/browse/OLINGO-1410
web
Sources
- CVE List CVE-2019-17556
- GitHub Advisory GHSA-gj76-429m-56wc
- NVD CVE-2019-17556
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.