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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-118987

CallBackery versions before 0.62.0 for Perl accept session cookies of any age sent in the X-Session-Cookie headerCVE-2026-118987

Answer in brief

CVE-2026-118987 records a Unknown severity vulnerability in CallBackery versions before 0.62.0 for Perl accept session cookies of any age sent in the X-Session-Cookie header. The current sources do not mark it as known exploited. The current feed maps CallBackery (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 30, 2026Updated Oct 30, 2026Source checked Oct 30, 2026First seen by HOL Oct 30, 2026Material review Oct 30, 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
Available

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 CallBackery (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
CallBackerygeneric>=0 <0.62.00.62.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for CallBackery.
  2. 2Review the reported fix. Source-reported solution: Upgrade to CallBackery 0.62.0 or later and set max_session_age in the BACKEND section.

Evidence timeline and material changes

  1. Published upstream

    Oct 30, 2026

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

  2. Source modified

    Oct 30, 2026

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

  3. First seen by HOL

    Oct 30, 2026

Sources and claim methodology

  • Source referencemetacpan.org
Upstream source description

CallBackery versions before 0.62.0 for Perl accept session cookies of any age sent in the X-Session-Cookie header. cookieConf() rejects a cookie older than 300 seconds only when it arrives in the xsc query parameter. The same cookie sent in the X-Session-Cookie header is accepted however old it is. A session cookie that leaks through a log, a Referer header or browser history authenticates as its user indefinitely.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-1463
Source
CVE List V5
Source checked
Oct 30, 2026
References
1 linked source
Open source record