Skip to content
Patch Next
Sign inAdd to your agent

← Actionable
Medium, CVSS 6.3amended

ciguard: SCA HTTP client reads response body without size cap

CVE-2026-44219GHSA-xw8c-rrvx-f7xq

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (ciguard 0.8.2), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

Add to your agent

Affected packages

  • PyPI ciguard

    Affected
    >= 0.6.0, <= 0.8.1
    Fixed in
    0.8.2

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
6.3 · CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N · score source
EPSS
  • CVE-2026-44219: 0.30% estimated exploitation activity in the next 30 days; percentile 22.97 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Summary Both SCA HTTP clients (src/ciguard/analyzer/sca/osv.py and src/ciguard/analyzer/sca/endoflife.py) call payload = json.loads(resp.read().decode('utf-8')) without a maximum-bytes cap. A hostile or compromised endoflife.date / OSV.dev (or a successful TLS MITM) could return a multi-GB response, exhausting the ciguard process's memory. Threat scenario ciguard process memory exhaustion → OOM kill or system swap thrash. Realistic when ciguard runs in CI with a limited memory budget (typical: 4-8 GB). No data integrity or confidentiality impact. Realism caveat: both URLs are hardcoded HTTPS, so this is a low-realism threat (HTTPS prevents MITM unless the attacker controls a trusted CA or hijacks DNS in a way that doesn't trigger cert validation). The unbounded read is structural defence-in-depth, not a directly exploitable bug today. Patch - New MAXRESPONSEBYTES = 5 1024 1024 (5 MB) constant in both modules. - body = resp.read(MAXRESPONSEBYTES + 1) with overflow check returns None…

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from ghsa record GHSA-xw8c-rrvx-f7xq

  2. Revision 2 · amended ·

    Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

  3. Revision 1 · created ·

    Published from osv record GHSA-xw8c-rrvx-f7xq

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2026-44219

Advisory: ciguard: SCA HTTP client reads response body without size cap
IDs: CVE-2026-44219, GHSA-xw8c-rrvx-f7xq
Record: https://patchnext.com/advisories/cve-2026-44219 (revision 3, source checked 26 Oct 2026, 13:41 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: ciguard 0.8.2. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI ciguard: affected >= 0.6.0, <= 0.8.1; fixed in 0.8.2

## Suggested inspection (read-only)
- `python -m pip show ciguard`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on ciguard.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-xw8c-rrvx-f7xq (OSV record GHSA-xw8c-rrvx-f7xq lists affected ranges: PyPI ciguard >=0.6.0 <0.8.2 (fixed))
- Verified: https://github.com/advisories/GHSA-xw8c-rrvx-f7xq (GitHub-reviewed advisory GHSA-xw8c-rrvx-f7xq lists affected ranges: PyPI ciguard >=0.6.0 <=0.8.1)

Commands are suggestions: review each one before running it.

Loading voting…