CVE-2017-0901
RubyGems version 2.6.12 and earlier fails to validate specification names, allowing a maliciously crafted gem to potentially overwrite any file on the filesystem.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 29.4%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
RubyGems version 2.6.12 and earlier fails to validate specification names, allowing a maliciously crafted gem to potentially overwrite any file on the filesystem.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 29.44% probability · 98th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 4 September 2017
- CISA KEV
- Not listed
- Weakness
- CWE-22, CWE-20
- Affected
- rubygems/rubygems · debian/debian linux · canonical/ubuntu linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation
- Source
- support@hackerone.com
EPSS moved from 26.3% on 21 September 2026 to 29.4% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://blog.rubygems.org/2017/08/27/2.6.13-released.htmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/100580Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039249Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:3485Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0378Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0583Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0585Third Party Advisory
- https://github.com/rubygems/rubygems/commit/ad5c0a53a86ca5b218c7976765c0365b91d22cb2Patch, Third Party Advisory
- https://hackerone.com/reports/243156Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201710-01Third Party Advisory
- https://usn.ubuntu.com/3553-1/Third Party Advisory
- https://usn.ubuntu.com/3685-1/Third Party Advisory
- https://www.debian.org/security/2017/dsa-3966Third Party Advisory
- https://www.exploit-db.com/exploits/42611/Exploit, Third Party Advisory, VDB Entry
- http://blog.rubygems.org/2017/08/27/2.6.13-released.htmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/100580Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039249Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:3485Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0378Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0583Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0585Third Party Advisory
- https://github.com/rubygems/rubygems/commit/ad5c0a53a86ca5b218c7976765c0365b91d22cb2Patch, Third Party Advisory
- https://hackerone.com/reports/243156Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201710-01Third Party Advisory
- https://usn.ubuntu.com/3553-1/Third Party Advisory
- https://usn.ubuntu.com/3685-1/Third Party Advisory
- https://www.debian.org/security/2017/dsa-3966Third Party Advisory
- https://www.exploit-db.com/exploits/42611/Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.