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Vulnerabilities

Vulnerability · CVE-2026-116127

Starlet versions before 0.33 for Perl send a body in responses to HEAD requests, corrupting the next response on a persistent or pipelined connection.

Published Oct 30, 2026 · catalog updated Oct 31, 2026 · Starlet versions before 0.33

Last checked Nov 7, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-116127. EPSS is 0.32%. Act only if a listed version of Starlet versions before 0.33 is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Starlet versions before 0.33).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.32%
Remediation
Advisory link
Affected products
Debian:12 starlet · Debian:13 starlet · Debian:14 starlet

Starlet versions before 0.33 for Perl send a body in responses to HEAD requests, corrupting the next response on a persistent or pipelined connection. The request method is not passed to the response writer, so whatever body the application returns for a HEAD request is sent. With Plack::Middleware::Head the body is empty, but an HTTP/1.1 response without a Content-Length header still gets the chunked encoding terminator. Responses with status 204 or 304 are also sent with their body. Pipelined GET and HEAD requests keep the connection open even when keep-alive is disabled, which is the default. A client or proxy reading the connection takes the extra bytes as the start of the next response, which may desynchronize a proxy that shares the connection across clients.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Debian:12 starlet0.31-2, 0.31-3, 0.32-1
  • Debian:13 starlet0.31-2, 0.31-2+deb13u1, 0.31-3
  • Debian:14 starlet0.31-2, 0.31-3, 0.32-1

How to fix CVE-2026-116127

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-116127. EPSS is 0.32%. Act only if a listed version of Starlet versions before 0.33 is installed.

Which versions are affected?

Compare what you have installed with 0.31-2, 0.31-3, 0.32-1, 0.31-2, 0.31-2+deb13u1, 0.31-3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.32%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Debian security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 30, 2026 · Trivy Vulnerability DB

    Detected

    Starlet versions before 0.33 for Perl send a body in responses to HEAD requests, corrupting the next response on a persistent or pipelined connection. The request method is not passed to the response writer, so whatever body the application returns for a HEAD request is sent. With Plack::Middleware::Head the body is empty, but an HTTP/1.1 response without a Content-Length header still gets the chu

  2. Oct 31, 2026 · Trivy Vulnerability DB

    Updated

    Starlet versions before 0.33 for Perl send a body in responses to HEAD requests, corrupting the next response on a persistent or pipelined connection. The request method is not passed to the response writer, so whatever body the application returns for a HEAD request is sent. With Plack::Middleware::Head the body is empty, but an HTTP/1.1 response without a Content-Length header still gets the chu

Sources

  • CVE.orgVulnerability recordCVE-2026-116127

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-116127

    30-day exploitation probability 0.32%

    first.org
  • Trivy Vulnerability DBPackage advisoryDEBIAN-CVE-2026-116127

    Starlet versions before 0.33 for Perl send a body in responses to HEAD requests, corrupting the next response on a persistent or pipelined connection. The request method is not passed to the response writer, so whatever body the application returns for a HEAD request is sent. Wit

    osv.dev

References

Freshness

Last verified in this catalog Nov 7, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 7, 2026
  • CVE.orgOct 31, 2026
  • Trivy Vulnerability DBOct 31, 2026