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VulnerabilityPublished Updated

CVE-2026-49290: byrongamatos slopsmith · Path Traversal

Affects byrongamatos slopsmithSource CVE Database V5

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Not known to be exploited · CVSS 7.6 High : upgrade to 0.2.9-alpha.5 soon.

Data as of 3 Nov 2026, 10:58 UTC

CVSS 4.0 base score
7.6High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.8% chance of exploitation in 30 days – higher than 57% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.2.9-alpha.5
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.

What to do

Upgrade byrongamatos slopsmith to 0.2.9-alpha.5.

Affected software

ProductAffectedFixed in
byrongamatosslopsmithAffected
  • <0.2.9-alpha.5
Fixed in
  • 0.2.9-alpha.5
GitHubbyrongamatos/slopsmithpkg:github/byrongamatos/slopsmithOther threatsAffected
  • =0.2.9-alpha.5
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Version 0.2.9-alpha.5 of Slopsmith patches this vulnerability. Users should upgrade to this version or later. Until then, do not open PSARC or sloppak archives from untrusted sources and avoid exposing Slopsmith instances to the public internet. Docker users should pull the latest Slopsmith image once it is published. Patch status is not explicitly confirmed beyond the version update; check the vendor advisory for the latest remediation guidance.

Description

Slopsmith is a self-contained web application for browsing, playing, and practicing Rocksmith 2014 Custom DLC (CDLC). Prior to 0.2.9-alpha.5, a path-traversal vulnerability in Slopsmith's archive extractors allows an attacker to write arbitrary files outside the extraction directory by supplying a crafted PSARC or sloppak archive. With the default Docker configuration (running as root) and the ability to drop a file into the plugin directory, this escalates to arbitrary remote code execution on the host. Three archive extractors concatenated archive-entry filenames directly onto the extraction root without validation: `lib/psarc.py::unpack_psarc` — PSARC TOC filenames; `lib/patcher.py::unpack_psarc` — duplicate of the above in the patcher flow; `lib/sloppak.py::_unpack_zip` — bare `ZipFile.extractall()` with no member filter. Each accepts entry names containing `..` segments, absolute paths, or backslash separators. The Python `zipfile` module's default `extractall()` is documented as not preventing traversal when callers don't supply a member-filter callback. Version 0.2.9-alpha.5 patches the issue. Until updated, do not open PSARC or sloppak archives from untrusted sources, and do not expose the Slopsmith instance to the public internet. Docker users should also pull the latest image after the next slopsmith Docker image is published.

References

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