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  4. CVE 2026 61702 openprinting cups root side banner file disclosure
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Back to active CVEs
Medium · CVSS 5.3CVE-2026-61702

OpenPrinting CUPS: root-side banner file disclosureCVE-2026-61702

Answer in brief

CVE-2026-61702 records a Medium severity (CVSS 5.3) vulnerability in OpenPrinting CUPS: root-side banner file disclosure. The current sources do not mark it as known exploited. The current feed maps OpenPrinting/cups (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 15, 2026Updated Oct 15, 2026Source checked Oct 15, 2026First seen by HOL Oct 15, 2026Material review Oct 15, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.3. 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 OpenPrinting/cups (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
OpenPrinting/cupsgeneric<2.4.202.4.20

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for OpenPrinting/cups.
  2. 2Review the reported fix. Update OpenPrinting/cups to 2.4.20 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 15, 2026

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

  2. Source modified

    Oct 15, 2026

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

  3. First seen by HOL

    Oct 15, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to 2.4.20, copy_banner() in scheduler/ipp.c uses the attacker-controlled IPP attributes-natural-language value as a directory component beneath DataDir/banners when processing a job-sheets banner. The job-sheets value must first match a registered banner basename, and the traversed path must contain a matching reachable basename; selecting an arbitrary target as demonstrated additionally requires pre-positioned path state such as a symlink with that basename. Subject to the scheduler's filesystem and sandbox access, path separators in the language value can escape the intended banner directory, make the root scheduler open the reachable file, and copy its bytes into a job-sheet spool object that a configured backend can deliver to an attacker-observable endpoint. This issue is fixed in version 2.4.20.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • CUPS ipp backend status-line injection can update queue PPD and lead to conditional RCE as lp via foomatic-ripSame openprinting/cups package
  • CUPS fax option values bypass the CVE-2026-34980 control-character sanitizer (incomplete fix)Same openprinting/cups package
  • CUPS copy_model() creates a predictable PPD tempfile without O_EXCL/O_NOFOLLOW (symlink TOCTOU, lp → root)Same openprinting/cups package
  • OpenNext Cloudflare: Cache interception can bypass middleware protection for encoded pathsSame generic ecosystem
  • Nuxt OG Image cache poisoning through derivable cache keys on unsigned dynamic image routesSame generic ecosystem
  • authd: Account takeover via username fallback in identity matching after IdP email reassignmentSame generic ecosystem

Record context

Vulnerability class
Path Traversal
EPSS
Not reported
CWE IDs
CWE-22
Source
CVE List V5
Source checked
Oct 15, 2026
References
4 linked sources
Open source record