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Vulnerabilities

Vulnerability · CVE-2026-77310

CVE-2026-77310 is listed by Incomplete fix for CVE-2026-54514: eager DNS resolution (SSRF) still present in InetAddress deserialization (sibling of the patched InetSoc…

Published Aug 21, 2026 · catalog updated Aug 21, 2026 · the affected product

Last checked Nov 2, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-77310. EPSS is 0.31%. Act only if a listed version of the affected product is installed.

Gaps on this record

  • No plain product name is stored. The page cannot tell you which product to check.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.31%
Remediation
Version ranges on file
Affected products
maven com.fasterxml.jackson.core:jackson-databind · maven tools.jackson.core:jackson-databind

CVE-2026-77310 is listed by Incomplete fix for CVE-2026-54514: eager DNS resolution (SSRF) still present in InetAddress deserialization (sibling of the patched InetSocketAddress branch).

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.

  • maven com.fasterxml.jackson.core:jackson-databind>= 2.0.0, < 2.18.9
  • maven com.fasterxml.jackson.core:jackson-databind>= 2.22.0, < 2.22.1
  • maven com.fasterxml.jackson.core:jackson-databind>=2.19.0, < 2.21.5
  • maven tools.jackson.core:jackson-databind>=3.0.0, < 3.1.5
  • maven tools.jackson.core:jackson-databind>=3.2.0, <3.2.1

How to fix CVE-2026-77310

  • Upgrade

    CVE-2026-77310 lists a fix boundary at 2.18.9. Compare the installed build with that boundary before you change production.

  • Version check

    Affected < 2.18.9

  • Advisory

    Open the inventory_github record and follow its fix.

  • Official advisories

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-2026-77310. EPSS is 0.31%. Act only if a listed version of the affected product is installed.

Which versions are affected?

Compare what you have installed with >= 2.0.0, < 2.18.9, >= 2.22.0, < 2.22.1, >=2.19.0, < 2.21.5, >=3.0.0, < 3.1.5, >=3.2.0, <3.2.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-918: Server-Side Request Forgery (SSRF). EPSS 0.31%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Jackson security

Code

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

Timeline

Detection, updates, and resolution for this record.

  1. Aug 21, 2026 · Maintainer security tabs

    Detected

    CVE-2026-77310 is listed by Incomplete fix for CVE-2026-54514: eager DNS resolution (SSRF) still present in InetAddress deserialization (sibling of the patched InetSocketAddress branch).

Sources

  • Maintainer security tabsVendor advisoryGHSA-vvgp-rfg2-7rr6

    ### Summary CVE-2026-54514 (GHSA-hgj6-7826-r7m5) fixed an eager-DNS-resolution / SSRF issue in jackson-databind's deserialization of by switching to (PR #5951, commit 1f5a1037, released in 2.18.8 / 2.21.4 / 3.1.4). That fix did not cover the sibling branch in the very same switch statement, which still calls and therefore performs an eager forward DNS lookup on attacker-controlled input at deseria

    github.com

Freshness

Last verified in this catalog Nov 2, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Maintainer security tabsNov 2, 2026