Server-Side Request Forgery in unoconv

published 2019-10-21 7 y ago modified 2026-06-17 4 mo ago also GHSA-27p5-7cw6-m45h , PYSEC-2019-213 , EUVD-2019-0151

cvss: 7.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.2%; EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits: 0; none known

The unoconv package before 0.9 mishandles untrusted pathnames, leading to SSRF and local file inclusion.

Patch / fix

fixed in 2 distros 2 links 1

pypi unoconv 0.9.0
universal_office_converter_project universal_office_converter 0.9

debian red hat

unoconv Debian 12 0.7-2

debian advisories DEBIAN-CVE-2019-17400

unoconv RHEL 7 0.6-8.el7

red hat advisories RHSA-2020:3944

github.com/unoconv/unoconv#510 pull request

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-17400 updated 2026-11-05 cvss 7.5

unoconv: mishandling of pathname leads to SSRF and local file inclusion

Red Hat Enterprise Linux Client (v. 7) unoconv 0.6-8.el7 Red Hat Enterprise Linux Server Optional (v. 7) unoconv 0.6-8.el7 Red Hat Enterprise Linux Workstation (v. 7) unoconv 0.6-8.el7
fixed: vendor fix RHSA-2020:3944

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.16% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

buer.haus https://buer.haus/2019/10/18/a-tale-of-exploitation-in-spreadsheet-file-conversions/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N
GitHub	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
pypi	unoconv	<0.9.0	0.9.0

Classification

Weakness

CWE-918 Server-Side Request Forgery

References

github.com /unoconv/unoconv/pull/510
web, patch, third-party-advisory
buer.haus /2019/10/18/a-tale-of-exploitation-in-spreadsheet-file-conversions/
exploit, third-party-advisory, web
nvd.nist.gov /vuln/detail/CVE-2019-17400
advisory
buer.haus /2019/10/18/a-tale-of-exploitation-in-spreadsheet-file-conversions
web
github.com /advisories/GHSA-27p5-7cw6-m45h
advisory
github.com /pypa/advisory-database/tree/main/vulns/unoconv/PYSEC-2019-213.yaml
web
github.com /unoconv/unoconv
package

Sources

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.

Summary