CVE-2008-6547 json
FormEncode Access Restrictions Bypass
published 2009-03-30 17 y ago modified 2026-06-16 4 mo ago also GHSA-9jp4-68vc-r8wq , PYSEC-2009-5 , EUVD-2009-0005
- cvss
- 7.5
- version 3.1, GitHub
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
schema.py in FormEncode for Python (python-formencode) 1.0 does not apply the chained_validators feature, which allows attackers to bypass intended access restrictions via unknown vectors.
Patch / fix
- pypi formencode 1.0.1
- python-formencode Debian 14, Debian 13, Debian 12 1.0.1-1
debian advisories DEBIAN-CVE-2008-6547
Exploit prediction
1.49% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | formencode | >=1.0, <1.0.1 <1.0.1 |
1.0.1 |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
sourceforge.net
/tracker/download.php?group_id=91231&atid=596416&file_id=271779&aid=1925164
web, patch
-
redhat.com
/archives/fedora-package-announce/2008-July/msg00607.html
vendor-advisory, web
-
secunia.com
/advisories/31163
third-party-advisory, vendor-advisory, advisory
-
secunia.com
/advisories/31081
third-party-advisory, vendor-advisory, advisory
-
securityfocus.com
/bid/30282
vdb-entry, web
-
sourceforge.net
/tracker/index.php?func=detail&aid=1925164&group_id=91231&atid=596416
web
-
exchange.xforce.ibmcloud.com
/vulnerabilities/43878
vdb-entry, web
-
osvdb.org
/47082
vdb-entry, web
-
nvd.nist.gov
/vuln/detail/CVE-2008-6547
advisory
-
github.com
/davidfraser/formencode
package
-
github.com
/pypa/advisory-database/tree/main/vulns/formencode/PYSEC-2009-5.yaml
web
-
web.archive.org
/web/20080905200034/http://secunia.com/advisories/31081
web
-
web.archive.org
/web/20081013102442/http://secunia.com/advisories/31163
web
-
web.archive.org
/web/20200228145643/http://www.securityfocus.com/bid/30282
web
-
github.com
/advisories/GHSA-9jp4-68vc-r8wq
advisory
Sources
- CVE List CVE-2008-6547
- GitHub Advisory GHSA-9jp4-68vc-r8wq
- NVD CVE-2008-6547
- OSV PYSEC-2009-5
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.