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CVE-2025-68121VulnerabilityPublished Updated

Red Hat Security Advisory: delve security update

Affects Red Hat delveSource GCVE Database

0
Authoritative record:CVE-2025-68121· Critical 9.1

Not known to be exploited · CVSS 9.1 Critical · fixed in Red Hat package updates : patch Red Hat tls as a priority.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.9% chance of exploitation in 30 days – higher than 59% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.26.0-rc.3, 1.25.7, 1.24.13
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 5 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade crypto/tls to 1.26.0-rc.3, 1.25.7 or 1.24.13.

Affected software

ProductAffectedFixed in
Go standard librarycrypto/tlsAffected
  • >=1.26.0-rc.1 <1.26.0-rc.3
Fixed in
  • 1.26.0-rc.3
Go standard librarycrypto/tlsAffected
  • >=1.25.0-0 <1.25.7
Fixed in
  • 1.25.7
Go standard librarycrypto/tlsAffected
  • <1.24.13
Fixed in
  • 1.24.13
Gocrypto/tlspkg:golang/crypto/tlsOther threatsAffected
  • <1.24.13
  • >=1.25.0-0 <1.25.7
  • >=1.26.0-rc.1 <1.26.0-rc.3
Fixed in
  • 1.24.13
  • 1.25.7
  • 1.26.0-rc.3
Gogithub.com/golang/go/src/crypto/tlspkg:golang/github.com/golang/go/src/crypto/tlsOther threatsAffected
  • =0
  • =1.25.0-0
  • =1.26.0-rc.1
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

Delve is a debugger for the Go programming language. The goal of the project is to provide a simple, full featured debugging tool for Go. Delve should be easy to invoke and easy to use. Chances are if you're using a debugger, things aren't going your way. With that in mind, Delve should stay out of your way as much as possible. Security Fix(es): * crypto/tls: Unexpected session resumption in crypto/tls (CVE-2025-68121) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

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