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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-107929

local interface connection reuse mixupCVE-2026-107929

Answer in brief

CVE-2026-107929 records a Unknown severity vulnerability in local interface connection reuse mixup. The current sources do not mark it as known exploited. The current feed maps curl/curl (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 20, 2026Updated Oct 20, 2026Source checked Oct 20, 2026First seen by HOL Oct 20, 2026Material review Oct 20, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps curl/curl (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
curl/curlgeneric>=8.22.0 <=8.22.0 || >=8.21.0 <=8.21.0 || >=8.20.0 <=8.20.0 || >=8.19.0 <=8.19.0 || >=8.18.0 <=8.18.0 || >=8.17.0 <=8.17.0 || >=8.16.0 <=8.16.0 || >=8.15.0 <=8.15.0 || >=8.14.1 <=8.14.1 || >=8.14.0 <=8.14.0 || >=8.13.0 <=8.13.0 || >=8.12.1 <=8.12.1 || >=8.12.0 <=8.12.0 || >=8.11.1 <=8.11.1 || >=8.11.0 <=8.11.0 || >=8.10.1 <=8.10.1 || >=8.10.0 <=8.10.0 || >=8.9.1 <=8.9.1 || >=8.9.0 <=8.9.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for curl/curl.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 20, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 20, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 20, 2026

Sources and claim methodology

  • Source referencecurl.se
  • Source referencecurl.se
  • Source referencehackerone.com
Upstream source description

When `CURLOPT_INTERFACE` (or the command line tool's `--interface` option) is set with one of the documented prefixes (`if!`, `host!`, `ifhost!`), that binding is not part of the connection reuse key, so a later transfer asking for a different source can silently reuse an existing connection and go out from the earlier transfer's source address

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • info leak uploading over WebSockets with GnuTLSSame curl/curl package
  • curl_mime_free stack overflow by recursionSame curl/curl package
  • Authorization: Negotiate sent to foreign originSame curl/curl package
  • password leak in CURLINFO_EFFECTIVE_URLSame curl/curl package

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-488
Source
CVE List V5
Source checked
Oct 20, 2026
References
3 linked sources
Open source record