Issues

• Privileged service scan reuses one source port for every probe connection (EADDRNOTAVAIL)

  nmap/nmap#3603 · Filter by author gnuletik opened on Nov 9, 2026

• Service scan drops a softmatch when a later probe connection fails

  nmap/nmap#3602 · Filter by author gnuletik opened on Nov 9, 2026

• ssh2-enum-algos.nse: crashes against servers that reject its obsolete proposal before sending their own KEXINIT

  Nmap
  nmap/nmap#3597 · Filter by author knoepfchendruecker opened on Nov 4, 2026

• rdp-enum-encryption crashes due to incorrect pcall usage in nselib/rdp.lua

  Nmap
  nmap/nmap#3592 · Filter by author ttrampus opened on Nov 2, 2026
  2

• FEAT - nping cleaner output for traceroute option (would you accept this as a PR?)

  nmap/nmap#3578 · Filter by author markcunninghamgit opened on Oct 25, 2026

• Permissions issues when run as root

  BSDNmapquestion
  nmap/nmap#3572 · Filter by author ertyu opened on Oct 24, 2026
  6

• Nmap 7.992 on Window7 32bit : python issue

  Nmap
  nmap/nmap#3571 · Filter by author philec-github opened on Oct 24, 2026

• Nmap 7.992: FTP reply can print terminal control bytes in verbose NSE output

  nmap/nmap#3566 · Filter by author gmkbenjamin opened on Oct 22, 2026

• MariaDB version misleading if host is not allowed

  Nmap
  nmap/nmap#3556 · Filter by author vollkorntomate opened on Oct 16, 2026

• macOS IPv6 SYN scan over utun selects link-local source, causing checksum and capture-filter mismatch

  Nmap
  nmap/nmap#3528 · Filter by author achelon5 opened on Oct 4, 2026
  2

• Need for CAP_NET_ADMIN on Linux

  documentationquestion
  nmap/nmap#3490 · Filter by author nnposter opened on Sep 13, 2026

• NmapOptionsTest defines test_default_executable twice; the shadowed copy calls a nonexistent assert

  nmap/nmap#3470 · Filter by author gargamel778 opened on Sep 5, 2026
  2

• make check-zenmap reports success regardless of test results

  nmap/nmap#3469 · Filter by author gargamel778 opened on Sep 5, 2026

• Audit all NSE scripts to document protocols/scripts with insecure auth methods

  documentationNmap
  nmap/nmap#3465 · Filter by author fyodor opened on Sep 2, 2026

• Nmap --unique needs XML output to reflect the hostnames that were not scanned.

  Nmap
  nmap/nmap#3409 · Filter by author dmiller-nmap opened on Jul 14, 2026
  1

• Resuming Interrupted Scan Only With Remaining Ports

  nmap/nmap#3403 · Filter by author mgierer opened on Jul 9, 2026

• Zenmap: upgrade API used to Gtk 4.0

  Zenmap
  Feature

  nmap/nmap#3352 · Filter by author dmiller-nmap opened on Apr 20, 2026

• ndiff-7.99 fails to build

  Ndiff
  nmap/nmap#3345 · Filter by author pierre-labastie opened on Apr 4, 2026

• Service detection FP: vnc-http mistaken for sslstrip

  Nmap
  nmap/nmap#3340 · Filter by author chovanecadam opened on Mar 31, 2026

• Improve console binary handling on MacOS installs

  macOS/OS XNmap
  nmap/nmap#3334 · Filter by author fyodor opened on Mar 26, 2026
  1

• Query string parsing unexpectedly performs HTML decoding

  enhancementNSE
  Feature

  nmap/nmap#3324 · Filter by author nnposter opened on Mar 16, 2026
  1

• Ncat -l --udp --keep-open does not work on Windows

  Ncat
  nmap/nmap#3320 · Filter by author dmiller-nmap opened on Mar 12, 2026
  1

• URL parsing misinterprets path parameters

  bugNSE
  Bug

  nmap/nmap#3318 · Filter by author nnposter opened on Mar 9, 2026

• nselib/omp2.lua: escape XML special characters in authenticate() credentials

  Nmap
  nmap/nmap#3311 · Filter by author MrEchoFi opened on Feb 25, 2026
  1

• smb version dropped the full version info

  nmap/nmap#3310 · Filter by author ssmithstone opened on Feb 21, 2026